This page provides guidance on bodybuilding and weight loss from a metabolic-friendly perspective, inspired by Ray Peat's principles. The approach emphasizes minimizing stress, supporting anabolic processes, and maintaining a high metabolic rate through non-destructive resistance training, proper fueling, and sustainable habits. Bodybuilding focuses on building quality muscle mass to enhance strength, metabolism, and overall health, while weight loss prioritizes slow, toxin-minimizing fat reduction without compromising muscle or thyroid function. Many principles overlap, such as resistance training's benefits for both goals, and adaptations for fat loss are highlighted in the second section.

Training

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Train 2 to 3 times a week, concentric-dominant, and stop before fatigue rather than pushing to failure. A one-hour outdoor walk with friends does more for stress and enjoyment than an intense gym session. Keep goals enjoyable and sustainable, not punishing.

Principles

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Concentric resistance training has an anabolic effect on the whole body. Sprinting is probably o.k. Endurance exercise is the worst. I don't think martial arts are necessarily too stressful.

— Ray Peat[1]

The heart contracts against a load and relaxes without a load. Heart mitochondria do not change during ordinary aging. Concentric-dominant movements with relaxed recovery phases follow this pattern.[2]

Do's

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  • Concentric, anaerobic activities
    • Concentric = muscle shortens under load
    • Less injury, less tissue damage, stronger metabolic support[3]
  • Weight lifting
  • Bodyweight exercise
  • Walking in stimulating environments
  • Uphill hiking, deadlifts, sled pushes (anabolic exercises)
Mind–muscle connection
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  • Visualize workouts
  • Flex in mirror
  • Twelve weeks of mental training alone (15 min/day, 5 days/week; little-finger abduction or elbow-flexion imagery; 30 volunteers) raised finger-abduction strength 35% and elbow-flexion strength 13.5%, versus 53% with physical finger training and no change in untrained controls; gains tracked higher EEG-derived cortical potential related to voluntary contraction control.[4]
  • One moderate lifting session (about 42 min; two sets of 10 on six machine and dumbbell lifts at 65–75% of one-repetition maximum; 121 adults aged 18–50) sped executive-function responses in an acute randomized between-subjects trial against a matched video of the same workout. Flanker and N-back response times were faster (between-group d = 0.37 and 0.48), Flanker P3 latency was shorter (d = 0.41), and accuracy did not improve. In exploratory mediation, the post-exercise systolic blood pressure rise (about 123 to 141 mmHg) mediated the response-time gains, and the lactate rise did not.[5] See Brain.
  • Brain activity stimulates growth and alteration of tissues such as the muscles; a few days of visualizing unusual postures and movements produced next-day hike-like muscle fatigue without physical exercise (trophic nerve effect).[6]
  • Kinesthetic control → direct stimulation signals
  • If high level, use microdoses of DHEA/testosterone with aspirin/nicotine; thyroid boosts reflexes (Ali's method)

Don'ts

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More in harm reduction

Recovery

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Forty minutes of moderate exercise can drop T3 to zero if glycogen isn't replenished.

— Ray Peat

One of the overlooked things is that muscle activity increases your body temperature and the increased body temperature increases your calorie burning ability. And so it's similar to what thyroid supplementing does. body warming effect of physical activity keeps your metabolic rate going with an anti-inflammatory effect. If you're sedentary, your body's temperature falls and you go into a pro-inflammatory state.

— Ray Peat[8]

Muscle recovery depends on glycogen restoration.

  • Sleep and MPS: One night of total sleep deprivation cut postprandial skeletal muscle protein synthesis about 18% the next afternoon in 13 healthy young adults (randomized crossover), raised plasma cortisol about 21%, and lowered plasma testosterone about 24%, without a change in measured markers of protein degradation.[15]

Overload & frequency

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The effectiveness of any load depends on the condition of the muscle at the time the load is applied.

— Bryan Haycock[16]
  • 2–3 days/week
  • Volume vs. intensity must be managed: moderate-intensity training (60% 1RM) stimulates both muscle quality and quantity, whereas lower intensity (40% 1RM) only increases size[17]
  • Avoid prolonged eccentric/trauma

Breathing / form

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  • Nose breathing as fatigue gauge
  • Maintain tongue posture
  • Slow, controlled lifting (no momentum; longer TUT)
  • Check asymmetries ("trauma patterns")

Minimal stimulation needed

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  • High-metabolism diet → minimal inflammation/stress → anabolism more default
  • Muscles "itch" when needing activation
  • Feel for correct reps/resistance instead of counting

Cardio & movement

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  • No formal cardio, e.g. running/cycling on treadmill/stationary bike
  • Cardio should be incidental, e.g.
    • Beach swims
    • Hikes/rucking, uphill or stairs
    • Roaming cities/marinas
    • Lindy walks
    • Wind sprints
    • Dogwalking
  • Walking, rucking, dancing, chopping wood[18][19]
  • Making love, wrestling, gardening
  • Gym focus needs scrutiny; see Activities for the fuller list
  • Acute rumination: in a within-subject experiment in major depression (n=24; order randomized), one 30-minute bout at 105% of the lactate threshold lowered self-reported rumination versus seated rest, and in a small EEG subsample it shifted the decoded brain state toward distraction. See Depression and Roadmap/06 - Activities.[20]
  • Gut bacteria and the drive to run: in a mouse study, chemicals made by certain gut bacteria switched on sensory nerves supplying the gut, and these nerves signalled the brain's reward area to raise dopamine during exercise, which kept the mice running. Wiping out the gut bacteria with antibiotics cut treadmill and wheel running by about half, and germ-free mice ran similarly poorly; muscle function was largely unchanged, everyday moving around stayed normal, and running recovered once the antibiotics stopped. Feeding the missing gut chemicals, or giving a drug that acts like dopamine, restored running. Limits: no people were studied, germ-free mice and mice on broad antibiotics are extreme cases, and the experiments were neither randomized nor blinded.[21]

Metabolic toxins & CO2

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Chart: relative telomere length of master sprint athletes vs age-matched non-athletes
Fig. 1 Relative telomere length of master sprint athletes and age-matched non-athletes. effect size (Cohen's d). Data expressed as mean ± SD.

Plans

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Novice (2-3×/week)

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  • Concentric-dominant compounds (push, pull, squat/hinge)
  • Slow tempo, no momentum, stop before fatigue
  • Add 30–60 daily minutes of pleasurable walking
Template
[edit]

PUSH DAY:

  • 3 sets, 12-15 reps, overhead press (barbell or dumbbell)
  • 3 sets, 12-15 reps, tricep pulldown
  • 3 sets, 12-15 reps, chest press or chest fly (machine)
  • 3 sets, until you feel the forearms burning, wringing something both clockwise and counterclockwise (a stick or a very light dumbbell)

PULL DAY:

  • 3 sets, 12-15 reps, bicep curls
  • 3 sets, 12-15 reps, dumbbell or seated rows
  • 3 sets, 12-15 reps, dumbbell shrugs
  • 3 sets, 5-10 reps, pull ups

LEG DAY:

  • All bodyweight, calf raises, stretches to touch toes,
  • If glute dominant, workout only the quads.
  • If quad dominant, isolate and workout the glutes.

4x a week Wayjacked Machine - If I had to start over by Geoffrey Verity Schofeld on Boostcamp App (free)

Intermediate

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  • Add sled pushes, uphill walking
  • Moderate load increases
  • Emphasize technique and mind-muscle awareness
  • Track body temp/pulse

Garage/Home Options

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  • Dumbbell pullover (ribcage expansion, Landshark approved)
YouTube video thumbnail
  • Bodyweight squats
  • Bands for concentric work
  • Slow push-ups, rows
  • Sled pull (homemade)
  • Walking inclines outdoors

Equipment

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  • Glass bottle
  • Fat grips
  • Non-plastic workout clothes

Fueling

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Eating guidelines

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Lean protein after lifting raises muscle protein synthesis more than high-fat protein; lipid-rich meat blunted the post-exercise response in a controlled pork comparison.[29]

Milk powder protein shake
From ReciPeatsMilk powder protein shake

A quick 5-minute blended drink combining whole milk, milk powder, and gelatin for a high-protein shake with a balanced calcium:phosphorus ratio.

Link to Food pyramid

Outputs:

  • Maintenance calories
  • Carb/protein/fat distribution (e.g., 80/15/5 template in the weight-loss section)
  • Milk/juice/gelatin targets
  • Mineral targets (Ca, Na, K, Mg)

Red flags

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  • Feeling hungry all day
  • Feeling cold (hands/feet)
  • Excessive sweating + stress
  • High prolactin (spiked by B6 deficiency during training)
  • Crash dieting

Muscle gain

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Effective bodybuilding focuses on anabolic efficiency and mitochondrial health rather than just external muscle mass.

Muscle quality vs. mass

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  • Muscle mass loss only explains about 10% of the associated loss in strength, indicating that mitochondrial function is a more critical factor[31].
    • Proper resistance training can actually reverse genetic markers of aging in human skeletal muscle.[32]
    • Physical exercise also supports hippocampal-dependent cognition with aging by restoring adult hippocampal neurogenesis (vascular niche remodeling; neurotrophic and antioxidant factors that reactivate neural stem cells); see Aging.[33]
  • Optimizing the Anabolic State:

Bulking / gaining weight

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Hardgainers are often hypothyroid: a low thyroid raises the caloric requirement just to maintain weight, so correcting thyroid function first can matter more than eating more.

I've known a few men in their 20's to early 40's... they would weigh maybe 140 pounds and be five, eight... And no matter how much they ate, they couldn't gain any weight. I suggested they try thyroid, and every one of them immediately started building muscle and growing.

— Ray Peat[39]

I often ate several thousand calories per day without getting fat, and small noises would shock me awake. Taking thyroid reduced my caloric requirement, and immediately allowed me to sleep deeply. Deficiencies of magnesium, vitamin A, and selenium probably contribute to that metabolic pattern.

— Ray Peat[40]

Taking thyroid can help thin people gain weight by improving protein metabolism, and it often helps with deeper sleep too.[41]

Beyond correcting thyroid, the same pro-metabolic foods used elsewhere on this page work in a surplus instead of a deficit: milk and orange juice sipped throughout the day, gelatin alongside muscle meats, and frequent small meals rather than a few large ones. Zinc (as in oysters) and the B-complex vitamins and potassium in brewer's yeast are sometimes worth adding on top of that, though it isn't a calorie-dense food itself.

Supplements

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Key supplements:

[edit]
Taurine Improves protein utilization, increases anabolic hormones (LH, testosterone, thyroid hormone), stimulates muscle protein synthesis, reduces cortisol (directly catabolic)
Creatine Supports ATP production, improves strength and lean mass, buffers lactic acid, reduces myostatin (inhibits muscle growth). Improves maximal strength by 5-15%. Increases muscle size through multiple mechanisms. Enhances glycogen storage by ~82% when combined with carbohydrates. Supports cognitive function. Pairing with ~1g sugar/kg bodyweight during loading boosted total muscle creatine retention by about 60% over creatine alone.[45] In 64 sedentary adults aged 45–65 on resistance training plus a 300–500 kcal/day deficit, creatine raised DXA lean tissue by 1.27 kg versus 0.14 kg on placebo over 12 weeks and lowered body fat by 3.24 versus 1.87 percentage points (RCT, exercise arm self-selected); DXA lean tissue includes water, and body water was not measured.[46] Dose: 5g daily
HMB Anti-catabolic leucine metabolite that reduces muscle breakdown, supports recovery, preserves lean mass during caloric deficits or stress, improves nitrogen retention, supports mitochondrial function
Vitamin D3 + K2 Supports testosterone synthesis, calcium metabolism (important for muscular contraction), reduces inflammation, improves insulin sensitivity, supports bone strength and muscular function
Aspirin (low dose) Lowers systemic inflammation and prostaglandin production (catabolic mediators), supports thyroid function, reduces muscle breakdown via COX inhibition, protective against excessive stress response
Vitamin B3 (Niacinamide) Increases NAD+ and mitochondrial respiration, anti-lipolytic (preserves glucose for energy use), reduces cortisol and free fatty acids
Vitamin B6 Avoid prolactin spike during exercise[47]
Vitamin E Protects against PUFA-induced oxidative stress, supports testosterone and pituitary function, enhances recovery, reduces muscle damage and inflammation after training
Gelatin / Collagen Provides glycine and proline (supportive amino acids for tendon, ligament, and connective tissue recovery), anti-inflammatory, balances methionine intake from muscle meats, supports thyroid and liver detoxification
Redbull//Coffee Great pre-workout
Choccy milk Post-workout recovery[48][49][50][51][52][53]

Women

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Hard training can suppress the menstrual cycle. Progesterone can become chronically deficient in women who exercise hard, showing up as scant or prolonged menstruation, or amenorrhea. Since progesterone converts into cortisone to meet the added stress of training, well-trained athletes, who need a lot of cortisone, often miss periods for exactly that reason.[54]

In male and female athletes who become infertile from training, progesterone (or its precursor pregnenolone) combined with thyroid support is a reasonable therapy.[55]

Any stress, including heavy exercise, triggers a protective slowing of the thyroid. The slow heart rate often seen in trained runners is largely this adaptive hypothyroidism, not necessarily a sign of superior fitness.[56]

Track temperature and pulse alongside the menstrual cycle itself as a feedback signal, and back off training or add calories if periods become irregular or stop.

A woman's body fat produces hormones that are important for fertility; 30% of body weight being fat can be favorable for health, with 25% probably being the minimum that is safe.

Weight loss

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The metabolic impact of food quality

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From a bioenergetic perspective, weight loss is not merely a matter of calorie expenditure (CICO), but a result of maintaining a high metabolic rate and minimizing chronic stress.

The modern obesity epidemic is heavily linked to the 300% increase in polyunsaturated fatty acid (PUFA) consumption, along with high iron and high-fructose corn syrup, rather than refined sugars alone. Studies show that even when controlling for calories, people in high-PUFA environments are significantly heavier than those from previous decades.

Micronutrient deficiencies and adiposity

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Hormonal roadblocks to fat loss

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  • Cortisol and hypoglycemia: Low-carbohydrate and calorie-deficient diets can trigger hypoglycemia, which causes a surge in cortisol.[59]
  • Parathyroid Hormone (PTH): Elevated PTH is associated with weight gain and reduced strength.[60]
  • Estrogen: This hormone promotes fat storage and can increase the uptake of harmful endotoxins (LPS) from the gut.
    • Gut clearance: the liver links glucuronic acid to estrogens and excretes them in bile, and some bacterial β-glucuronidase enzymes in the colon strip it off again, so the freed estrone and estradiol can be reabsorbed (in vitro enzyme study).[61] In healthy men, oxytetracycline at 1 g/day for 5 days raised fecal conjugated estrogens and lowered urinary estrogens, while plasma estrone, estradiol and testosterone did not change significantly (small intervention study).[62] In 25 men and 7 postmenopausal women, urinary estrogens rose with fecal microbial diversity and with Clostridia taxa (R=0.50–0.70); no bacterial phylum, Bacteroidetes included, tracked them, and fecal β-glucuronidase activity correlated only with urinary estrone (R=0.36) (cross-sectional study).[63]
    • Bowel transit: in 40 premenopausal women randomized to senna, wheat bran or loperamide, speeding transit with senna for two menstrual cycles lowered serum estrone and estrone sulfate, wheat bran (about 20 g/day) lowered estrone sulfate, and slowing transit with loperamide caused no significant change (randomized trial).[64] Ten vegetarian women passed heavier stools and more fecal estrogen than 10 omnivores and had lower fecal β-glucuronidase activity; among the vegetarians, plasma estrone and estradiol fell as fecal estrogen output rose (small observational study).[65]
  • Endorphins: Often praised in exercise, endorphins are actually heavily associated with obesity and can inhibit protective hormones like progesterone and testosterone.[66]

The problem with endurance training

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  • Total daily energy expenditure does not keep climbing with more activity: in 332 adults across five populations, doubly labeled water TEE plateaued at higher accelerometer activity after body-size adjustment (constrained TEE), so stacking endurance miles is a poor bet for raising daily burn.[67]
  • Intramyocellular lipid: both sedentary/diabetic people and highly-trained endurance athletes can accumulate high muscle fat content, but only in the former is it linked to insulin resistance; in trained athletes it coexists with high insulin sensitivity (the "athlete's paradox"), so this marker alone doesn't indicate a metabolic problem.[68]
  • Endotoxemia and leaky gut: Strenuous or prolonged exercise increases intestinal permeability, allowing bacteria-derived endotoxins to enter the blood, which triggers inflammation and further promotes fat storage.[69]
    • In healthy volunteers, even a short bout of maximal aerobic exercise raised blood endotoxin, and 1,000 mg of vitamin C taken beforehand prevented the rise.[70]
  • Endurance mileage and androgens: In 15 previously sedentary men who built running to about 56 km/week over 6 months, total testosterone and free androgen index fell significantly; PRL and cortisol also fell, while single-sample LH/FSH and LH pulse frequency (n=5) did not change, and weight loss did not correlate with the testosterone drop.[71]

Core principle

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Always balance stress with nourishment. Restrict calories without slowing metabolism, and avoid feeling hungry, day or night.

If fewer calories yield no weight loss (and it isn't fasting damage), intensify Peating to address root causes (estrogen, stress, gut issues, thyroid) rather than cutting further. Prioritize body repair over weight loss; natural loss likely follows. Temporary weight gain is possible during this process.[72]

Older textbook rules treated intake below about 1,700 kcal/day as enough for anyone to lose weight. In closed metabolic wards, some women who had dieted chronically still maintained weight on about 700 kcal/day; adaptations include a slower thyroid and stress-related muscle atrophy.[73][74]

Among obese patients a group of "efficient metabolisers" can hold excess weight on intakes occasionally as low as about 600 kcal/day; among anorexic women a few fail to reach normal weight on about 3,500 kcal/day and may develop T3 thyrotoxicosis.[75] On a ~1.34 MJ/day (~320 kcal/day) formula diet, efficient metabolisers slowed weight loss as resting metabolic rate, serum T3, and lymphocyte T3 receptor number fell; adding 60 µg/day T3 produced significantly greater weight loss by week 12.[76] Compared with 780 kcal/day, 330 kcal/day for 8 weeks in hospitalized obese subjects blunted the thermic response to food and dropped free T3 faster while resting oxygen uptake fell in both groups.[77]

Diet

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"The ratio of calcium to phosphate is very important; that's why milk and cheese are so valuable for weight loss, or for preventing weight gain. For people who aren't very active, low fat milk and cheese are better, because the extra fat calories aren't needed."

— Ray Peat[78]
  • Eat enough to feel satisfied, not stuffed. Weight loss needs a calorie deficit relative to a raised metabolic rate, not just lower intake; if normally overeating, restrict slightly by lowering fat and maybe starch first.
  • Pro metabolic, easy to digest, low PUFA, smaller more frequent meals to keep the metabolism up.
  • Protein from milk/cheese/low-fat dairy; limit grains/meats to ~3-4 oz. Milk, fruit, gelatin, seafood, liver, and eggs are the typical Peat staples; ensure minerals and vitamins (especially vitamin D) are covered too.
  • Add cooked leafy greens (Ca/Mg), gelatin, fruits, shellfish, occasional organs.[79]
  • Use food to recover after training instead of relying only on willpower.[80]
  • Maintain high Ca:P ratio. High dairy intake can speed up fat loss even at the same calorie intake: a high-dairy diet increased weight loss by 70% and fat loss by 64% versus a low-calcium diet at the same calorie deficit.[81] This can allow maintenance calories to rise from around 1500 to 2000.[82] It increases whole-body fat oxidation after meals and suppresses PTH, enhancing mitochondrial uncoupling and T4-to-T3 conversion; evidence for a direct thermogenic (metabolic-rate) boost is weaker and less consistent than the fat-oxidation effect.[83] A chronic diet high in dairy calcium increases whole-body fat oxidation from a meal specifically, and increases in fasting parathyroid hormone relate to decreases in that effect.[84]

Macros

[edit]

Hunger cues

[edit]

Consume quick calories at the first sign of hunger rather than white-knuckling it:

Activity

[edit]
  • Walking uphill/stairs burns meaningfully more per minute than flat walking, with less stress than running, no equipment, and no excuse not to; whether it beats running depends on the pace you'd otherwise run at.[85]
  • Strength training as the main stressor; add manageable cardio (e.g. 30-min walks) if desired, or any movement you find fun, including swimming
  • Belly fat and insulin: in a small single-group trial in older men with type 2 diabetes, supervised strength training twice a week for 16 weeks, without a weight-loss diet, raised insulin sensitivity by about 46% and shrank both visceral and subcutaneous belly fat while body weight stayed the same.[86]
  • Get sunlight, good sleep, and spend time with supportive people; vitamin D via sun/tanning is required, not optional.[87]
  • Use stress wisely: avoid piling on unnecessary stress (long fasts, excessive cardio, under-eating) beyond training itself
  • Train sustainably; increase physical activity outside the gym too, and raise volume/intensity gradually rather than all at once
  • Track body temperature, pulse, and energy levels as signs metabolism is staying supported

Slow, steady loss

[edit]

Don't lose fat too quickly. Rapid loss releases stored toxins via free fatty acids, overloading the liver and risking a metabolic crash that can cause diabetes and liver disease.[88] On a 500 or 600 calorie diet with adequate minerals, almost all the weight lost was fat, while a complete fast is very destructive.[89] With a well-fed liver (80 to 100 grams of protein a day) and good thyroid function, the liver can dispose of released PUFA as a toxin without having to oxidize it.[90] Low-fat milk and orange juice, the core of the therapeutic diet, also suit a weight-loss diet.[91] Aim for 6 to 12+ months. Use how you feel and the mirror as guides rather than daily weigh-ins.

Avoid

[edit]
  • Crash dieting (T3 plummets, metabolic rate downregulates, famine response)[92]
    • Very-low-calorie formula feeding lowers RMR, serum T3, and lymphocyte T3 receptor capacity in "efficient metabolisers"; exogenous T3 can reopen weight loss in that setting, which is not a reason to crash-diet without thyroid and fuel support.[76]
    • The Minnesota Starvation Experiment showed the side effects of heavy calorie restriction:
      • Heart mass ↓ ~15–25%
      • Liver size ↓ ~13% (of fat-free mass)
      • Skeletal muscle ↓ significantly (up to ~40% in some)
      • Metabolic rate ↓ ~30–40%
      • Thyroid output ↓
      • Testosterone ↓
      • Brain structurally preserved, but function altered[93]
  • Keto/fasting (raises stress, hair loss, burns muscle too); intermittent fasting has been shown to worsen glucose, triglyceride, and cholesterol control specifically in people who already have diabetes, not necessarily in healthy people.[94]
  • Extreme cardio
  • Chronic stress lifestyle
  • Obsessive calorie counting
  • Expecting quick fixes (3 months doesn't undo 10 years)

Hunger & satiety

[edit]
  • If always full, it's a sign of "Peating too hard"; reduce fat/snacking
  • If cold hands/feet, eat more milk/juice

Ray's quotes

[edit]

Let's say you were about 50 or 60 pounds overweight, what would you do to lose weight? Go on a low-fat milk and cheese diet, with a little bit of orange juice and an occasional egg and oyster. Calcium and vitamin D are supportive of the thyroid hormone.

— Ray Peat[95]

1,000 calories a day while still getting all the RDA protein, vitamins and minerals isn't good for your health if you have to lose weight that way, but it's an effective short-term option. Keeping the minerals up is very important. Calcium, magnesium, potassium, and sodium are very protective against too much of the stress reaction.

— Ray Peat[96]

What should be the focus if a person is gaining weight? Not to eat too many calories first, and then to gradually shift towards a lower fat intake, whatever keeps your temperature up without having an excess of calories.

— Ray Peat[97]

Sucrose itself, some experiments show that you can increase the metabolic rate by 20% just with sucrose. And so when you do it just right, sugar is a very powerful weight loss instrument.

— Ray Peat[98]

As your ability to burn fat decreases with your falling thyroid, the cortisol eats up your skeletal muscles that burn fat, and so the unburned fat gets laid down in your trunk and neck and face area.

— Ray Peat[99]

I saw people lose weight stably when they had the habit of eating large amounts of tortilla chips fried in coconut oil, but those chips disappeared when their producers were pressured into switching to other oils.

— Ray Peat[100]

The anti-obesity effect of coconut oil is clear in all of the animal studies, and in my friends who eat it regularly.

— Ray Peat[100]

If a person really wants to concentrate on losing weight, using milk as their main protein: milk and gelatin are the most favorable for weight loss, partly because the milk comes with such a generous supply of calcium, and calcium powerfully stimulates the metabolic rate.

— Ray Peat[101]

Q: What about weight loss for women in menopause, if they lose that weight do they then poison themselves with estrogen as it comes out of the cells? Ray Peat: Just temporarily, but it's better to get rid of it and have it local, because inside the cells it produces things such as breast cancer, lung cancer, uterine cancer.

— Ray Peat[102]

So even as a matter of weight gain, the worst fats for gaining weight are the polyunsaturated vegetable oil fats. The saturated fats don't stimulate weight gain to the same degree.

— Ray Peat[103]

One thing that often surprises people who want to lose weight is that milk drinkers as a group are the least likely to be fat... Calcium itself is a major factor in preventing the inflammation process which is important in turning on the fat storage business.

— Ray Peat[104]

Q: So you're okay with cow dairy? Ray Peat: That's the best practical major protein because of the very high calcium ratio to phosphate.

— Ray Peat[104]

The starch isn't quite as stimulating to the metabolic rate as sugar. So the things that I chronically mention in connection with a therapeutic diet happen to be ideal for a weight-loss diet: low-fat milk and orange juice.

— Ray Peat[105]

On a water fast for 10 days, they found that 80% or more of their weight loss came from destruction of their muscle and skin mass. But if they had a 500-600 calorie diet with adequate minerals, almost all of the weight loss was in the form of fat loss rather than muscle.

— Ray Peat[106]

[My weight] had been steady at 185 pounds for 25 years, but over a period of six months it dropped to about 175 pounds. I found that eating more coconut oil lowered my weight another few pounds, and eating less caused it to increase.

— Ray Peat[100]

An increased intake of calcium is the single most important nutritional thing for losing weight. Low-fat milk and cheese should be the main foods; a carrot salad helps to reduce stress hormones.

— Ray Peat[107]

Cellulose can accelerate transit through the intestine and lower estrogen systemically (partly by simply preventing the reabsorption of estrogen that has been secreted by the bile), but the lignans found in many seeds and grains tend to promote inflammation. Raw carrots, for example, lower estrogen, while flax meal can increase it.

If you lose too fast, that is going to cause damage by oxidative decomposition of the unsaturated fats as they're being oxidized at a higher rate. So I think slow weight loss is the best thing. And having enough protein and minerals in your diet during weight loss can make a tremendous difference in the amount of stress.

— Ray Peat[109]

[Haidut] Bodybuilders abuse steroids to lose weight and gain lean mass. Considering that testosterone, DHT, and progesterone are anti-lipolytic, what mechanism lets them cause rapid fat loss without really increasing fat oxidation? Ray Peat: The liver, when it's well nourished and activated by thyroid rather than estrogen effects, can harmlessly excrete PUFA. Any PUFA that appears in your bloodstream can be recognized by the liver as a toxin and inactivated by attaching glucuronic acid to it, causing it to be excreted in the urine. [Haidut] So the androgens are basically protecting the liver and allowing it to excrete more PUFA? Ray Peat: Yeah, and thyroid and progesterone and aspirin work in that direction.

— Ray Peat[110]

Many diet studies have found that you oxidize fat at a high rate the first in some people the first 12 hours and some people the first 24 hours ... at some point you have depleted your stored glycogen and that blocks the formation of the active T3 thyroid hormone and from that point on you're relying for energy to an increased extent on the breakdown of tissue protein turning it into fat and so a more or less starvation diet that goes on for a week or two will I think it's about 80% of your weight loss is in the form of muscle loss and very little maybe 20% in the form of fat loss but if you eat enough sugar and have the minerals such as in fruit and keep a slight protein intake the small amount of sugar will prevent the breakdown of protein tissues and a 10 to 14 day diet in this case will cause you to lose maybe 80% fat and only 20% muscle.

— Ray Peat[111]

In one experiment people were put on a treadmill ... so that they kept a steady heart rate of no faster than 120 beats per minute just like you were walking down the street and they had blood tests at intervals and almost everyone stopped producing T3 in the first hour of that mild exercise so when your T3 is turned off whether it's by starvation or by excess activity that's the point of which you start breaking down protein tissues.

— Ray Peat[112]

The carbohydrate at the right amount will spare the protein. So 80 grams of protein a day, for example, if you're getting the carbohydrate from orange juice, comes with minerals. Potassium has a sparing effect on the protein besides the sugar. So fruit juice plus the adequate amount of protein will keep your metabolism up and tend to promote fat loss rather than protein loss.

— Ray Peat[113]


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References

[edit]
  1. ↑ Ray Peat, email correspondence, "Exercise," raypeatemails.com, https://raypeatemails.com/Topics/Exercise
  2. ↑ "Mitochondria and mortality," Ray Peat
  3. ↑ Vøllestad NK. "Metabolic Correlates of Fatigue from Different Types of Exercise in Man," Adv Exp Med Biol. 1995. doi:10.1007/978-1-4899-1016-5_15.
  4. ↑ Ranganathan VK, Siemionow V, Liu JZ, Sahgal V, Yue GH. "From mental power to muscle power - gaining strength by using the mind," Neuropsychologia. 2004;42(7):944-956. doi:10.1016/j.neuropsychologia.2003.11.018. PMID 14998709.
  5. ↑ Baumgartner NW, Belbis MD, Noh K, Hirai DM, Amireault S, Kao SC. "Brawn and Brainpower: Acute Resistance Exercise Improves Behavioral and Neuroelectric Measures of Executive Function," Psychophysiology. 2025;62(11):e70171. doi:10.1111/psyp.70171. PMID 41168935.
  6. ↑ Ray Peat, "Nutrition for Women", p. 91
  7. ↑ Robergs RA, Ghiasvand F, Parker D. "Biochemistry of exercise-induced metabolic acidosis," Am J Physiol Regul Integr Comp Physiol. 2004. PMID 15308499.
  8. ↑ Ray Peat, "Ray Peat Interview with Tucker Goodrich, David Gornoski on PUFAs, Seed Oils, Benefits of Sugar, Milk", On the Back of a Tiger, 59:03
  9. ↑ Hong SW, et al. "Impact of diverse sleep characteristics on long-term skeletal muscle loss: A cohort study," Maturitas. 2025 Nov. https://pubmed.ncbi.nlm.nih.gov/41016245/#:~:text=sleep%20characteristics%20on%20loss%20of%20skeletal%20muscle%20mass
  10. ↑ Jones RL, et al., "The effect of sodium bicarbonate ingestion on back squat and bench press exercise to failure," J Strength Cond Res. 2016. https://pubmed.ncbi.nlm.nih.gov/24126895/#:~:text=J%20Strength%20Cond%20Res
  11. ↑ Christ T, et al. "The acute effects of pre- and mid-exercise carbohydrate ingestion on the immunoregulatory stress hormone release in experienced endurance athletes," Frontiers in Sports and Active Living. 2024. https://pubmed.ncbi.nlm.nih.gov/38362064/#:~:text=cortisol%20is%20involved%20in%20delayed%20regulation
  12. ↑ Tarpenning KM, Wiswell RA, Hawkins SA, Marcell TJ. "Influence of weight training exercise and modification of hormonal response on skeletal muscle growth," J Sci Med Sport. 2001;4(4):431-446. PMID 11905937. doi:10.1016/s1440-2440(01)80052-9. Acute session: 7 young men, 3 sets of 10 at 75% 1RM on nine stations after a 4-hour fast; cortisol rose 7% with the 6% carbohydrate drink versus 99% with placebo, while blood glucose and insulin rose. Twelve-week progressive training: carbohydrate during sessions kept blunting cortisol; type I fibre area increased 19.1% and type II 22.5% versus training alone; the cortisol-response difference accounted for 74% (r = 0.8579, p = 0.006) of type I and 52.3% (r = 0.7231, p = 0.043) of type II fibre-area variance.
  13. ↑ Caplin A, Chen FS, Beauchamp MR, Puterman E. "The effects of exercise intensity on the cortisol response to a subsequent acute psychosocial stressor," Psychoneuroendocrinology. 2021;131:105336. doi:10.1016/j.psyneuen.2021.105336. PMID 34175558.
  14. ↑ Lastella M, et al. "Can Sleep Be Used as an Indicator of Overreaching and Overtraining in Athletes?" Frontiers in Physiology. 2018. https://pubmed.ncbi.nlm.nih.gov/29740346/#:~:text=Sleep%20Be%20Used%20as%20an%20Indicator%20of%20Overreaching%20and%20Overtraining%20in%20Athletes
  15. ↑ Lamon S, Morabito A, Arentson-Lantz E, et al. "The effect of acute sleep deprivation on skeletal muscle protein synthesis and the hormonal environment," Physiol Rep. 2021;9(1):e14660. PMID 33400856.
  16. ↑ Haycock, B. (2000, October). Hypertrophy-Specific Training. ThinkMuscle Newsletter.
  17. ↑ Otsuka Y, et al. "Effects of resistance training intensity on muscle quantity/quality in middle-aged and older people: a randomized controlled trial," Journal of Cachexia, Sarcopenia and Muscle. 2022 Apr. https://pubmed.ncbi.nlm.nih.gov/35187867/
  18. ↑ Ray Peat, "Nutrition for Women", p. 92
  19. ↑ @pikeypilled on X
  20. ↑ Welkerling J, Niess A, Schneeweiss P, Sudeck G, Rohe T, Wolf S. "Single bout of exercise reduces self-reported and decoded rumination in favor of distraction in patients with major depression," J Affect Disord. 2026;397:120829. doi:10.1016/j.jad.2025.120829. PMID 41360378. Condition × time F(6, 343.05)=4.44, p<.001, partial η²=0.07, differences from minute 10-30; EEG subsample n=10, condition F(1, 117)=9.46, p=.003.
  21. ↑ Dohnalová L, Lundgren P, Carty JRE, et al. "A microbiome-dependent gut–brain pathway regulates motivation for exercise," Nature. 2022;612(7941):739-747. doi:10.1038/s41586-022-05525-z. PMID 36517598. PMCID PMC11162758.
  22. ↑ Spacek LA, et al. "Repeated Measures of Blood and Breath Ammonia in Response to Control, Moderate and High Protein Dose in Healthy Men," Scientific Reports. 2018. https://www.nature.com/articles/s41598-018-20503-0
  23. ↑ Güzel NA, et al. "Effects of different resistance exercise protocols on nitric oxide, lipid peroxidation and creatine kinase activity in sedentary males," Journal of Sports Science & Medicine. 2007. https://pmc.ncbi.nlm.nih.gov/articles/PMC3794479/#:~:text=Resistance%20Exercise%20Protocols%20on%20Nitric%20Oxide
  24. ↑ Ueha T, et al. "Increase in carbon dioxide accelerates the performance of endurance exercise in rats," The Journal of Physiological Sciences. 2018 Jul. https://pubmed.ncbi.nlm.nih.gov/28601950/#:~:text=mitochondrial%20DNA%20content%20and%20capillary%20density
  25. ↑ Niikura T, et al. "Topical cutaneous application of carbon dioxide via a hydrogel for improved fracture repair: results of phase I clinical safety trial," BMC Musculoskeletal Disorders. 2019. https://link.springer.com/article/10.1186/s12891-019-2911-7
  26. ↑ Ray Peat, email correspondence, "Exercise," raypeatemails.com, https://raypeatemails.com/Topics/Exercise
  27. ↑ @pikeypilled on X
  28. ↑ @RayPeatHeadShop on X
  29. ↑ Zupančič N, Burd NA, et al. "Lipid-rich meat blunts postexercise MPS," Am J Clin Nutr. 2025. doi:10.1016/j.ajcnut.2025.09.001.
  30. ↑ @RayPeatHeadShop on X
  31. ↑ Serra-Prat M, et al. "Intracellular Water Content in Lean Mass as an Indicator of Muscle Quality in an Older Obese Population," Journal of Clinical Medicine. 2020. https://www.mdpi.com/2077-0383/9/5/1580
  32. ↑ Melov S, et al. "Resistance exercise reverses aging in human skeletal muscle," PLoS ONE. 2007. https://pubmed.ncbi.nlm.nih.gov/17520024/#:~:text=aging%20in%20human%20skeletal%20muscle
  33. ↑ Farmand S, Du Preez A, Kim C, et al. "Exercise counteracts age-associated," Ageing Res Rev. 2025;107:102725. doi:10.1016/j.arr.2025.102725. PMID 40064399.
  34. ↑ Brown JG, et al. "Thyroid hormones and muscle protein turnover: the effect of thyroid-hormone deficiency and replacement in thyroidectomized and hypophysectomized rats," The Biochemical Journal. 1981. https://pubmed.ncbi.nlm.nih.gov/6171261/#:~:text=translational%20phase%20of%20protein%20synthesis%20in%20muscle%20in
  35. ↑ Ray Peat, "Inflammation", Ray Peat Email Q&A
  36. ↑ Shi X, et al. "Runners' metabolomic changes following marathon," Nutrition & Metabolism. 2020. https://link.springer.com/article/10.1186/s12986-020-00436-0
  37. ↑ Braun TP, Marks DL. "The regulation of muscle mass by endogenous glucocorticoids," Frontiers in Physiology. 2015. https://pubmed.ncbi.nlm.nih.gov/25691871/#:~:text=Cortisol%20acts%20on%20skeletal%20muscle
  38. ↑ Sato K, et al. "Resistance training restores muscle sex steroid hormone steroidogenesis in older men," FASEB Journal. 2014 Apr. https://pubmed.ncbi.nlm.nih.gov/24443372/#:~:text=has%20been%20shown%20to
  39. ↑ Ray Peat, "Generative Energy #43: Body Temperature, Inflammation, and Aging", Danny Roddy, 49:33
  40. ↑ Ray Peat, email correspondence, "Weight Gain," raypeatemails.com, https://raypeatemails.com/Topics/Weight+Gain
  41. ↑ Ray Peat, "Nutrition for Women", p. 18
  42. ↑ Eskiocak S, et al. "Effect of psychological stress on the L-arginine-nitric oxide pathway and semen quality," Brazilian Journal of Medical and Biological Research. 2006 May. https://pubmed.ncbi.nlm.nih.gov/16648894/#:~:text=After%20standard%20semen%20analysis
  43. ↑ Dmitrašinović G, et al. "ACTH, Cortisol and IL-6 Levels in Athletes following Magnesium Supplementation," Journal of Medical Biochemistry. 2016 Oct. https://pubmed.ncbi.nlm.nih.gov/28670189/#:~:text=Magnesium%20Supplementation%20Gordana%20Dmitra
  44. ↑ Zdzieblik D, et al. "Collagen peptide supplementation in combination with resistance training improves body composition and increases muscle strength in elderly sarcopenic men," British Journal of Nutrition. 2015 Oct. https://pubmed.ncbi.nlm.nih.gov/26353786/#:~:text=significantly%20more%20pronounced%20in%20subjects%20receiving%20collagen%20peptides
  45. ↑ Green AL, et al., "Carbohydrate ingestion augments skeletal muscle creatine accumulation during creatine supplementation in humans," Am J Physiol. 1996;271(5):E821-826.
  46. ↑ Chun J, Liu Y, Kibler GL, Lee H, Babakhani K, Rhoades N, Bivins I, Ko J, Dickerson B, Gonzalez DE, Sowinski RJ, Rasmussen CJ, Kreider RB. "Effects of creatine supplementation with and without exercise and diet intervention on body composition, cognitive function, and markers of health in middle-aged and older adults," J Int Soc Sports Nutr. 2026;23(sup1):2716273. doi:10.1080/15502783.2026.2716273. PMID 42578920.
  47. ↑ Moretti C, et al. "Pyridoxine (B6) suppresses the rise in prolactin and increases the rise in growth hormone induced by exercise," New England Journal of Medicine. 1982 Aug. https://pubmed.ncbi.nlm.nih.gov/7088124/
  48. ↑ Pritchett K, Pritchett R. "Chocolate milk: a post-exercise recovery beverage for endurance sports," Medicine and Sport Science. 2012. https://pubmed.ncbi.nlm.nih.gov/23075563/#:~:text=recovery%20and%20may%20attenuate%20indices%20of%20muscle%20damage
  49. ↑ Karp JR, et al. "Chocolate milk as a post-exercise recovery aid," International Journal of Sport Nutrition and Exercise Metabolism. 2006 Feb. https://pubmed.ncbi.nlm.nih.gov/16676705/
  50. ↑ Amiri M, et al. "Chocolate milk for recovery from exercise: a systematic review and meta-analysis of controlled clinical trials," European Journal of Clinical Nutrition. 2019 Jun. https://pubmed.ncbi.nlm.nih.gov/29921963/
  51. ↑ Pritchett K, et al. "Acute effects of chocolate milk and a commercial recovery beverage on postexercise recovery indices and endurance cycling performance," Applied Physiology, Nutrition, and Metabolism. 2009 Dec. https://pubmed.ncbi.nlm.nih.gov/20029509/
  52. ↑ Gilson SF, et al. "Effects of chocolate milk consumption on markers of muscle recovery following soccer training," Journal of the International Society of Sports Nutrition. 2010 May. https://pubmed.ncbi.nlm.nih.gov/20482784/
  53. ↑ Papacosta E, et al. "Effects of acute postexercise chocolate milk consumption during intensive judo training on recovery," Applied Physiology, Nutrition, and Metabolism. 2015 Nov. https://pubmed.ncbi.nlm.nih.gov/26513005/
  54. ↑ Ray Peat, "Nutrition for Women", p. 28
  55. ↑ Ray Peat, "Nutrition for Women", p. 21
  56. ↑ Ray Peat, "Nutrition for Women", p. 17
  57. ↑ Maguire D, et al. "The role of thiamine dependent enzymes in obesity and obesity related chronic disease states: A systematic review," Clinical Nutrition ESPEN. 2018 Jun. https://pubmed.ncbi.nlm.nih.gov/29779823/
  58. ↑ Tinkov AA, et al. "Influence of iron and copper consumption on weight gain and oxidative stress in adipose tissue of Wistar rats," Interdisciplinary Toxicology. 2012 Sep. https://pubmed.ncbi.nlm.nih.gov/23554552/
  59. ↑ Dallman MF, et al., "Chronic stress and obesity: a new view of comfort food," Proc Natl Acad Sci USA. 2003;100(20):11696-11701.
  60. ↑ McCarty MF, Thomas CA. "PTH excess may promote weight gain by impeding catecholamine-induced lipolysis," Medical Hypotheses. 2003 Nov-Dec. https://pubmed.ncbi.nlm.nih.gov/14592784/
  61. ↑ Ervin SM, Li H, Lim L, et al. "Gut microbial β-glucuronidases reactivate estrogens as components of the estrobolome that reactivate estrogens," Journal of Biological Chemistry. 2019;294(49):18586-18599. doi:10.1074/jbc.RA119.010950. PMID 31636122.
  62. ↑ Hämäläinen E, Korpela JT, Adlercreutz H. "Effect of oxytetracycline administration on intestinal metabolism of oestrogens and on plasma sex hormones in healthy men," Gut. 1987;28(4):439-445. doi:10.1136/gut.28.4.439. PMID 3034744.
  63. ↑ Flores R, Shi J, Fuhrman B, et al. "Fecal microbial determinants of fecal and systemic estrogens and estrogen metabolites: a cross-sectional study," Journal of Translational Medicine. 2012;10:253. doi:10.1186/1479-5876-10-253. PMID 23259758.
  64. ↑ Lewis SJ, Heaton KW, Oakey RE, McGarrigle HH. "Lower serum oestrogen concentrations associated with faster intestinal transit," British Journal of Cancer. 1997;76(3):395-400. doi:10.1038/bjc.1997.397. PMID 9252210.
  65. ↑ Goldin BR, Adlercreutz H, Gorbach SL, et al. "Estrogen excretion patterns and plasma levels in vegetarian and omnivorous women," New England Journal of Medicine. 1982;307(25):1542-1547. doi:10.1056/NEJM198212163072502. PMID 7144835.
  66. ↑ Gold, M. S., & Sternbach, H. A. (1984). Endorphins in obesity and in the regulation of appetite and weight. Integrative Psychiatry, 2 (6), 203–207.
  67. ↑ Pontzer H, et al. "Constrained total energy," Curr Biol. 2016;26(3):410-417. PMID 26832439.
  68. ↑ Goodpaster BH, et al., "Skeletal Muscle Lipid Content and Insulin Resistance: Evidence for a Paradox in Endurance-Trained Athletes," J Clin Endocrinol Metab. 2001;86(12):5755-5761.
  69. ↑ Ribeiro FM, et al. "Is There an Exercise-Intensity Threshold Capable of Avoiding the Leaky Gut?" Frontiers in Nutrition. 2021. https://pubmed.ncbi.nlm.nih.gov/33763441/
  70. ↑ Ashton T et al. 2003. "Exercise-induced endotoxemia: the effect of ascorbic acid supplementation." Free Radic Biol Med. doi:10.1016/s0891-5849(03)00309-5 Small human study, healthy volunteers; plasma LPS rose after maximal acute aerobic exercise (p < 0.01); 1000 mg oral ascorbic acid abolished the rise in LPS and nitrite but raised the ascorbate free radical.
  71. ↑ Wheeler GD, Singh M, Pierce WD, et al. "Endurance training decreases serum testosterone levels in men without change in luteinizing hormone pulsatile release," J Clin Endocrinol Metab. 1991;72(2):422-425. PMID 1899423.
  72. ↑ @RayPeatHeadShop on X
  73. ↑ Ray Peat, "ELUV: Good Fats", ELUV (18 Sep 2008), 8:09
  74. ↑ Ray Peat, "Ask the Herb Doctor: Weight Gain", Ask the Herb Doctor (15 Feb 2013), 5:11
  75. ↑ Marks J, Howard AN. The Cambridge Diet: A Manual for Practitioners. MTP Press; 1986. doi:10.1007/978-94-011-8011-5.
  76. ↑ 76.0 76.1 Moore R, Mehrishi JN, Verdoorn C, Mills IH. "The role of T3 and its receptor in efficient metabolisers receiving very-low-calorie diets," Int J Obes. 1981;5(3):283-6. PMID 6268557.
  77. ↑ Davies HJ, Baird IM, Fowler J, Mills IH, Baillie JE, Rattan S, Howard AN. "Metabolic response to low- and very-low-calorie diets," Am J Clin Nutr. 1989;49(5):745-51. PMID 2718912.
  78. ↑ Weight Loss, Ray Peat Email Exchanges
  79. ↑ Ray Peat, "Phosphate, Activation, and Aging," raypeat.com.
  80. ↑ 80.0 80.1 @RayPeatHeadShop on X
  81. ↑ Zemel MB, et al., "Calcium and Dairy Acceleration of Weight and Fat Loss during Energy Restriction in Obese Adults," Obes Res. 2004;12(4):582-590.
  82. ↑ @RayPeatHeadShop on X
  83. ↑ Soares MJ, et al., "Postprandial Energy Metabolism in the Regulation of Body Weight: Is there a Mechanistic Role for Dietary Calcium?" Nutrients. 2010;2(6):586-598.
  84. ↑ Gunther CW, et al. "Fat oxidation and its relation to serum parathyroid hormone in young women enrolled in a 1-y dairy calcium intervention," Am J Clin Nutr. 2005. doi:10.1093/ajcn/82.6.1228.
  85. ↑ Wong MWH, et al. "An Exploratory Study Comparing the Metabolic Responses between the 12-3-30 Treadmill Workout and Self-Paced Treadmill Running," International Journal of Exercise Science. 2025. https://pmc.ncbi.nlm.nih.gov/articles/PMC11798546/#:~:text=flat%20walking%20or%20running
  86. ↑ Ibañez J, Izquierdo M, Argüelles I, Forga L, Larrión JL, García-Unciti M, Idoate F, Gorostiaga EM. "Twice-weekly progressive resistance training decreases abdominal fat and improves insulin sensitivity in older men with type 2 diabetes," Diabetes Care. 2005;28(3):662-667. PMID 15735205. Single-group trial with a 4-week pre-training control period; 9 men aged about 67; insulin sensitivity by minimal model rose 46.3% (P < 0.01); visceral fat fell 10.3% and subcutaneous abdominal fat 11.2% by CT (both P < 0.01); fasting glucose fell 7.1%; energy intake rose 15.5%.
  87. ↑ Ray Peat, "Adaptogenic Milk", Ray Peat's Newsletter, September 2017
  88. ↑ Ray Peat, "Politics & Science: Questions and Answers I", Politics & Science, 2013-02-20, 30:04
  89. ↑ Ray Peat, "Jodellefit: Cortisol, Low Testosterone", Jodellefit, 2019-06-01, 23:56
  90. ↑ Ray Peat, "Ask the Herb Doctor: Uses of Urea", KMUD, 2015-02-20, 56:12
  91. ↑ Ray Peat, "Taking Genetic Manipulation to a Whole New Level", One Radio Network, 1:40:57
  92. ↑ Rowsemitt C, Najarian S. "TSH is Not the Answer: Rationale for a New Paradigm." https://www.semanticscholar.org/paper/TSH-is-Not-the-Answer%3A-Rationale-for-a-New-Paradigm-Rowsemitt-Najarian/1fc11865ff267982882f567dda881956a0ce2ddc
  93. ↑ Kalm LM, Semba RD, "They starved so that others be better fed: remembering Ancel Keys and the Minnesota experiment," J Nutr. 2005;135(6):1347-1352.
  94. ↑ Ramadan-fasting study in diabetic vs. non-diabetic patients, discussed at https://haidut.me/?p=2992
  95. ↑ Ray Peat, "Dr Ray Peat Q&A: PUFAs, fructose, weight loss, PCOS, hormones, cholesterol, & more," Strong Sistas interview, 2020.
  96. ↑ Ray Peat, "Bodybuilding and Steroids / Progesterone for Men? / Basic Bioenergetic Therapies with Ray Peat," YouTube interview.
  97. ↑ Ray Peat, "Bodybuilding and Steroids / Progesterone for Men? / Basic Bioenergetic Therapies with Ray Peat," YouTube interview.
  98. ↑ Ray Peat, "Bodybuilding and Steroids / Progesterone for Men? / Basic Bioenergetic Therapies with Ray Peat," YouTube interview.
  99. ↑ Ray Peat, "Thyroid, Polyunsaturated Fats and Oils," KMUD interview, 2009-04-01.
  100. ↑ 100.0 100.1 100.2 Ray Peat, "Coconut Oil," raypeat.com.
  101. ↑ Ray Peat, "Sugar, part 2," KMUD interview, 2010-10-15.
  102. ↑ Ray Peat, "Iodine, Supplement Reactions, Hormones," KMUD interview, 2016-02-19.
  103. ↑ Ray Peat, "Weight Loss, Macros, Prolactin, Cancer, Cold Therapy, and More Q&A," YouTube interview.
  104. ↑ 104.0 104.1 Ray Peat, "Nutrition, part 1," ORN interview.
  105. ↑ Ray Peat, "Taking Genetic Manipulation to a Whole New Level," interview.
  106. ↑ Ray Peat, "Cortisol, Low Testosterone," Jodellefit interview, 2019-06-01.
  107. ↑ Ray Peat, email correspondence, "Weight Gain," raypeatemails.com, https://raypeatemails.com/Topics/Weight+Gain
  108. ↑ Inflammation, endotoxin, estrogen, and other problems, Ray Peat Newsletter, 2006
  109. ↑ Ray Peat, "Politics & Science: Questions and Answers I", Politics & Science, 2013-02-20, 30:04
  110. ↑ Ray Peat, "Generative Energy #55: Bioenergetic Nutrition Basics, The Ray Peat Diet, Appetite and Metabolism", Danny Roddy, 48:51
  111. ↑ Ray Peat, "Get Fit with Jodelle: Thyroid, Hypothyroidism, and Diet/Lifestyle/Exercise to Fix It", Get Fit with Jodelle, 39:08
  112. ↑ Ray Peat, "Get Fit with Jodelle: Thyroid, Hypothyroidism, and Diet/Lifestyle/Exercise to Fix It", Get Fit with Jodelle, 40:50
  113. ↑ Ray Peat, "Jodellefit: Listener Q&A: Calories, Cortisol, Cellulite, Exercise, Ephedra & More", Jodellefit, 2019-11-12, 28:20