Milk
"A daily diet that includes two quarts of milk and a quart of orange juice provides enough fructose and other sugars for general resistance to stress, but larger amounts of fruit juice, honey, or other sugars can protect against increased stress, and can reverse some of the established degenerative conditions."
— Ray Peat[1]
"The presence of lactose in milk, and of fat, to slow absorption of the amino acids, helps to minimize the secretion of cortisol. The main protein of milk, casein, seems to have some direct antistress effects."
— Ray Peat[2]
Milk is the fluid mammals secrete to feed their young. It is ecologically efficient, providing refined nutrients from leaves via rumen bacteria, supporting beneficial gut flora and reducing endotoxin. It has antistress effects but is high in growth-promoting amino acids and phosphate; low in iron, beneficial for adults. Combining milk, cheese, and fruits moderates stress hormones. Regular milk and cheese, with nutrients like calcium and vitamins D/K, prevent chronic stress-related diseases including insomnia, hypertension, edema, inflammations, and allergies.
Dosing
[edit]Ray Peat generally recommended at least two quarts of milk a day, describing this as enough to provide much of a diet's protein and other nutrients.[3][4] Practical upper ranges discussed in interviews include three quarts, or up to a gallon a day;[5][6] pregnant women are often steered toward at least two quarts for the extra protein and calcium.[7]
Avoiding fluoridated water and the polyunsaturated oils, and drinking two quarts of milk daily (which will provide only 66 grams of protein), and using some other nutrient-rich foods such as eggs and fruits, are probably the basic things to protect the bones.
I have averaged two quarts a day for a long time.
Labels
[edit]Labels without legal standards
[edit]- All natural: Description means nothing, since everything it technically "natural"
- Farm fresh: Marketing term, not indicating actual farm conditions; milk may come from confined cows.
- Grass-fed: Claims can be misleading unless certified; cows may primarily eat grain.
Labels with legal standards
[edit]- USDA Organic: Requires pasture grazing during full grazing season.
- Certified Humane: Ensures proper space, shelter, and pasture access.
- Animal Welfare Approved: Mandates year-round pasture living, no feedlots or tethering.
A1 beta-casein
[edit]Found in milk from breeds like Holstein; may release BCM-7 peptide during digestion, linked to digestive discomfort in some people.
Assume all milk is A1 unless proven otherwise
A2 beta-casein
[edit]Found in milk from breeds like Guernsey or Jersey; lacks BCM-7, easier to digest. Goat milk is naturally this type across the breed, not just select individuals as in cattle.[10]
Milk processing
[edit]Homogenized
[edit]Milk processed under pressure to break fat globules into smaller particles so the fat doesn't separate, creating a uniform texture.
"The pressure breaks the particle of fat up into such a small size that it doesn't separate. Presumably, that makes unstable fats oxidize faster, so it has a small harmful effect. But considering the alternatives in a supermarket, other foods are going to be much more dangerous as oxidants."
— Ray Peat[11]
The popular theory that homogenized fat particles are small enough to pass into and block arteries has little basis. Bile already breaks dietary fat into particles of the same size for normal chylomicron absorption into the bloodstream. Homogenization isn't doing anything the digestive system doesn't already do.[11] The specific version of this theory that circulated in the 1970s, that homogenization-liberated xanthine oxidase enters the bloodstream and damages arteries, was reviewed and found unsupported: absorption of the enzyme into the blood was never demonstrated, and no link between homogenized milk intake and serum xanthine oxidase or artery damage was established.[12] Elsewhere he says he doesn't notice homogenization making milk harder to digest and drinks homogenized milk himself for convenience. He has also called homogenized, pasteurized, organic grass-fed milk "not really" a negative.[13]
Sterilized/UHT
[edit]Avoid if possible
Pasteurized
[edit]Ok
Flash pasteurized
[edit]Better
Canned or powdered
[edit]Heat degrades protein. Canned and powdered milk lose significant amounts of lysine, an essential amino acid, during processing. The same heat damage happens to toasted nuts, cereals, and beans. Heated lysine forms a carcinogen when a sugar is present, as it is in soybeans.[14] Fresh whole milk avoids this problem entirely.
Raw
[edit]A systematic review of 40 studies found pasteurization lowered vitamin B12 and vitamin E and raised vitamin A, and the authors judged milk a minor natural source of the heat-affected vitamins.[15]
“The difference [between pasteurized and raw milk] isn't enough to worry about.”
— Ray Peat
Legal status and pasteurization requirements vary by region; the main public-health concern with raw milk is pathogen risk (Salmonella, E. coli, Listeria). Pasteurized milk still works for the pro-metabolic milk pattern on this wiki.
"Pasteurization reduces the content of vitamin B2 and B12 and folic acid very slightly, but the main differences are that raw milk should taste better, and it generally doesn't have the additives that are in most commercial milk."
— Ray Peat[16]
Each cow carries its own particular bacterial balance in raw milk, which varies with diet and season; a bad reaction to raw milk from one cow doesn't mean raw milk in general is the problem.[17]
Milk fractions
[edit]Whey
[edit]Whey is the liquid protein fraction left after casein curds form during cheesemaking. It digests faster than casein and is commonly sold as an isolated powder marketed for muscle building. Isolated whey (protein without the fat and sugar of whole milk) is a faster, more stress-adjacent amino-acid load for some people than whole dairy. Prefer whole milk, yogurt, and cheese as food; if using whey, pair it with carbohydrate and don't let it replace gelatin balance in the wider diet.
The two milk proteins differ sharply in cysteine content: whey is well established in the food-science literature as the notably cysteine-rich milk fraction (it's the standard protein source used to boost dietary glutathione synthesis for this reason), while casein's cysteine content is comparatively low. Cysteine released during stress or muscle catabolism has antimetabolic, thyroid-suppressing effects that can become toxic at high levels, so this difference gives casein an edge over isolated whey for anyone leaning on dairy protein under chronic stress.[18][19]
"When we eat large amounts of muscle meats or liver the high concentration of cysteine suppresses the thyroid. Heart, eggs, skin (gelatin) and milk are more favorable to the thyroid."
— Ray Peat[20]
Warm milk with a little sugar or honey before bed is a standard Peat sleep aid: the casein is anti-stress, and milk slows absorption of the sugar, lowering adrenaline and helping older people especially avoid the sleep hypoglycemia that drives nighttime adrenaline surges and insomnia.[21]
Cream
[edit]Cream is the high-fat layer of milk, used in cooking, coffee, and desserts. Like butter, it's saturated dairy fat with low PUFA relative to seed oils: a useful tool for calories, not a replacement for whole milk as the primary dairy source. Quality and additives vary in ultra-pasteurized cartons, and calories climb fast at cream's fat density.
Lactoferrin
[edit]Lactoferrin is an iron-binding protein present in small amounts in cow's milk and in much higher concentration in colostrum and human milk. In an 8-week double-blind, placebo-controlled trial, 26 Japanese men and women with abdominal obesity took 300 mg/day of enteric-coated bovine lactoferrin. CT-measured visceral fat area fell 14.6 cm² in the lactoferrin group versus 1.8 cm² with placebo, alongside greater drops in body weight and BMI.[22] Whole milk and dairy products carry lactoferrin in far smaller amounts than the enteric-coated tablets used in the trial; the effect hasn't been shown from ordinary dietary intake.
Lactoferrin also binds circulating lipopolysaccharide and blunts its downstream inflammatory signaling, neutralizing some of the toxic effects of endotoxin.[23]
Lactoferrin's antimicrobial effect depends on how much iron it already carries, and the native protein carries little. A commercial "native" bovine lactoferrin measured 10% iron-saturated, its iron-stripped apo form 2.5%, and an iron-loaded holo form 66%. Apo and native lactoferrin both inhibited a seven-species consortium of human gut bacteria in culture, while the holo form slowed growth only at the highest dose.[24] Lactoferrin purified from human milk measured 30% iron-saturated.[25] Apo-lactoferrin killed oral Candida isolates, while iron-saturated lactoferrin had no effect (see Candida).
Milk type by fat
[edit]Milk is not fattening; drinkers are slimmer due to high-quality protein, saturated fat, and calcium suppressing PTH. In a 6-month weight-loss trial, milk calcium supplementation blunted the usual rise in hunger and desire to eat.[26] Adequate calcium minimizes PTH, boosting energy, reducing inflammation, obesity, metabolic syndrome, dementia, cancer, multiple sclerosis, tooth decay, and high blood pressure. PTH promotes calcification, histamine, and vascular issues; milk lowers it conveniently.
"I think the calcium content is what makes it anti-inflammatory. Calcium increases the oxygen-using ability of the mitochondria, similar to thyroid. Systemically, it suppresses the parathyroid hormone (PTH). PTH is a stress hormone that, when continued too long, contributes to degenerative diseases. Having a chronically high calcium intake gives you a chronically low parathyroid level."
— Ray Peat[27]
Full fat
[edit]Good for bulking; if drunk in large amounts, skim is the better choice, since the fat adds up.
"It depends on how active they are. Nowadays, kids are more likely to be watching their computer or telephones than doing active calorie burning. So I think usually one or two percent fat content is good even for kids. In a dairy country where people are working vigorously eight or ten hours a day, then full fat milk is very appropriate because they need the calories and will burn them. very often people who drink whole milk and have a sedentary way of life are going to get fat."
— Ray Peat[28]
Skim
[edit]In a meta-analysis of observational studies, milk drinkers had slightly higher odds of acne, with the strongest link for skim milk and the weakest for full-fat milk.[29]
"One percent cow milk or reduced fat goat milk is probably the best source for most people because if you're working all day on a farm, for example, it's fine to drink a gallon of whole milk because you're spending so many"
— Ray Peat[30]
"The amount of estradiol in milk is usually much less than one microgram per liter, and it's concentrated in the cream, so low-fat milk has very little estrogen. The cow's diet is probably a more important factor in the estrogen content of milk than pregnancy."
— Ray Peat[31]
Watch out for added synthetic vitamins.
"If you have a problem with one brand of milk, I found that the taste of the milk is a good indicator of how easy it is on your digestion. But some people do react probably to the way they've added the vitamin A and D. They use an emulsifier and some of the emulsifiers might cause digestive problems."
— Ray Peat[28]
Animal
[edit]Goat
[edit]"Goat milk contains more copper than cow milk, and copper is important for energy metabolism and blood formation."
— Ray Peat
Does not require homogenization
More digestible, opt for it if experiencing issues.
20 times the taurine compared to cow's.[32]
Cow
[edit]"Cow milk is the next best thing to human milk, and sometimes it's better because cow's milk is built on nutrients that have passed through the fermenting rumen and cleaned up, detoxified of lots of things such as unnecessary polyunsaturated fatty acids."
— Ray Peat
Most available and often cheapest type of milk.
Human
[edit]See Breastfeeding for maternal-side nutrition. Human milk carries roughly a third the protein of cow's milk (about 1.3 g vs 3.3 g per 100 ml) and a different whey-to-casein ratio (around 60:40 in human milk versus 20:80 in cow's). The standard explanation ties this to growth rate: calves need more protein to grow quickly, while human infants direct comparatively more energy toward brain and nervous-system development, needing more fat and less protein.[33]
John D. Rockefeller drank human milk from wet nurses in his old age as part of his diet.[34]
Camel
[edit]Has the least fat compared to all the other milks, only about 4-5 g per cup (240 ml).
Sheep
[edit]"I think camel and sheep milk are kind of thick, high on energy and fat, but they would work, but you would get fatter than on low-fat cow milk."
— Ray Peat[30]
Has the most fat of all milks, ~16–17 g per cup (240 ml). Sheep beta-casein carries proline rather than histidine at the BCM-7-forming site, so it's predominantly the A2-type, like goat and most non-Holstein cow milk.[35]
Casein
[edit]Casein is the main protein family in milk and cheese. It supplies amino acids in a slow-digesting form and carries calcium. Anti-dairy campaigns treat casein as pure allergen; high-milk cultures treat it as staple protein.
Peat cites a rat study in which a high-casein (300 g/kg), high-fat (150 g/kg) diet raised serum triglycerides and liver arachidonic acid and DHA more than an equivalent gelatin-based diet, tying the amino acid profile of isolated casein (versus gelatin) to those effects.[36] This is a rat feeding study on isolated casein at a high dose, not a human dosing recommendation; Peat's guidance is whole dairy foods, balanced with gelatin.
Cheese, milk, and yogurt deliver casein with fat and sugar. That package supports anti-stress meals when digestion works. Isolated casein powders are a different product. Balance dairy protein with gelatin if the diet is otherwise all muscle meat and whey isolates.
Milk peptides and proteins, casein and whey, carry anti-inflammatory substances, and the calcium of milk products lowers parathyroid hormone, a basic pro-inflammatory factor.[37] For adults, the amino acid balance of cheese may beat that of milk, since the whey portion carries more tryptophan than the curd.[38] Some casein toxicity studies use chemically broken-down casein injected into animals, which has nothing to do with drinking milk.[39]
Whole dairy foods first. Watch gut symptoms; product quality and endotoxin load matter.
Lactose
[edit]Lactose is milk sugar: glucose bound to galactose. Intestinal lactase splits it. "Lactose intolerance" is over-diagnosed in cultures that drink little fresh milk and under-discussed in high-milk cultures that show few problems.[40]
Gut irritation, endotoxin, and product quality explain many Western milk reactions better than a pure genetic story. Fresh milk from better-fed animals digests cleaner for many people. See Endotoxin, Leaky gut.
Galactose is also called brain sugar in older literature; milk sugar feeds both halves of the disaccharide.
Colon bacteria can also adapt to regular lactose exposure. In a controlled crossover trial, lactose maldigesters who consumed lactose daily for 10 days showed a threefold rise in fecal beta-galactosidase activity and a significant drop in breath-hydrogen output and symptom scores compared with a dextrose control period. The change came from colonic bacteria adapting and producing fewer fermentation byproducts, rather than from the small intestine regaining lactase.[41]
If liquid milk fails, try cheese, yogurt, or ice cream with lower residual lactose. Fix thyroid and gut before permanent dairy exile. Regular, gradual exposure may itself lower symptoms via colonic bacterial adaptation.[41]
Cheese
[edit]"Cheese is a much better investment than a hospital or doctors."
— Ray Peat
Cheese has been a man's friend for at least 7500 years,[42] it is a concentrated source of casein, a protein that, when digested, produces opioid-like peptides known as exorphins. These specific peptides, called casomorphins, possess psychoactive properties and can significantly influence physiological and neurological states.[43]
Chemical composition and casomorphins
[edit]• Casomorphins: These are peptides produced during the digestion of casein.
• A1 vs. A2 Casein: Shorter peptides derived from A1 β-casein can penetrate the intestinal wall and the blood-brain barrier more easily than longer chains. They have a high affinity for μ-opiate receptors.
Benefits
[edit]Cardiovascular associations
[edit]A two-sample Mendelian randomization study using genome-wide association data found that higher cheese intake was causally linked to lower risk of type 2 diabetes, heart failure, coronary heart disease, hypertension, and ischemic stroke. The protective association tracked with lower BMI, smaller waist circumference, lower triglycerides, and lower fasting glucose in cheese eaters, with a suggestive rise in HDL. No association appeared with blood pressure or inflammation markers.[44]
Physiological effects
[edit]The opioid-like activity of cheese consumption can lead to several systemic issues:
• Digestive System: Exorphins are known to impair bowel transit. Approximately 90% of opioid users develop chronic constipation, which leads to increased serotonin in the brain and may "lock" traumatic experiences within the nervous system.
• Metabolism: Opioids exhibit anti-thyroid activity, characterized by a drop in body temperature, shivers, and slowed brain activity due to depressed oxygen circulation.
• Histamine Release: Opioid use can trigger a massive release of histamine into the bloodstream, which may cause the sensation of "bugs crawling under the skin" or itchy skin.
• Physical Rigidity: Morphine-like states can produce muscle rigidity (sometimes called "wooden chest syndrome" or "turning into stone") and reduced responsiveness to external stimuli, overlapping with symptoms of depression and learned helplessness.
Neurological and psychological impacts
[edit]• Dream Alteration: The psychoactive properties of casomorphins can influence dream content and quality. This phenomenon was popularized by the 1904 comic "Dream of the Rarebit Fiend," based on the observation that eating Welsh rarebit (hot cheese on toast) caused vivid nightmares. Some individuals also report sleep paralysis linked to cheese and gluten consumption.
• Autism and Psychosis: High levels of β-casomorphin have been found in the urine of autistic children and individuals undergoing psychotic episodes. Some populations with autism appear highly sensitive to BCM-7 and other morphine-like exorphins, experiencing "brain fog" or being "knocked out" and drowsy after consuming cheese.
• Addiction and Withdrawal: The sources describe "itinerant caso-junkies" and anecdotal accounts of extreme addiction to the crystalline form of fermented or acid-hydrolyzed casein.
Interactions and antagonists
[edit]Opioid antagonists
[edit]• Coffee: Both caffeinated and decaffeinated coffee contain caffeoyl quinide, a potent opioid receptor antagonist similar in magnitude to naloxone. Combining strong coffee with milk/cheese may help counteract casomorphin’s effects and aid laxation.
• Pharmaceuticals:
◦ Naloxone and Naltrexone: Used to reverse states of mental and physical rigidity caused by opioids.
◦ Low Dose Naltrexone (LDN): Reported by some to ameliorate inflammatory symptoms and sensory processing issues associated with autism and exorphin sensitivity.
◦ Cyproheptadine: Also noted as a tool to reverse opioid-induced rigidity.
The casein in cheese is anti-inflammatory and anti-stress, the whey fraction has the opposite effect, and most of the milk's calcium stays with the cheese.[45] Cheese is a good way to get enough calcium without milk when a diet is heavy in phosphate.[46] For calcium, the calcium-to-phosphate ratio matters more than the absolute amount, and about 4 ounces of Parmigiano Reggiano would usually be enough.[47]
Cottage cheese was traditionally made by draining and salting the curd, which left it free of lactic acid; some brands now add a dressing of lactic acid and dry milk powder for shelf life.[48]
Cheese recipes
[edit]
A practical everyday use of traditional cheese.
Brands and sources
[edit]Problem with modern cheese
[edit]About two-thirds of all cheese in the world is no longer made with animal rennet, but with genetically modified microorganisms producing usually one single enzyme rather than the natural complex of enzymes in rennet. The industry of genetically engineered enzymes has almost completely taken over world cheese production.
You have to be very cautious with cheeses because they're putting seaweed and other gums in them to increase their water content. They can add 30% to the weight just by putting more jelly in it.
Cheese labels
[edit]The basic safe ingredients are: milk, salt, and rennet. If it says "vegetable rennet," that can mean an engineered enzyme system, a manufactured bunch of fungal enzymes.
Cheese list
[edit]Hard cheeses (safest options)
[edit]- Parmigiano Reggiano (D.O.P.): The real parmesan called Reggiano is often the safest option, along with a couple of other ethnic cheeses from Greece or Italy that still have traditional methods.
- Pecorino Romano (D.O.P.): Second best
- Grana Padano (D.O.P.): Cheaper, but still safe option
- Tillamook Vintage White Sharp Cheddar?? (2-3 year aged): Note: the process has since changed, so only what was already aging has the traditional composition
Semi-Hard
[edit]Ray on Basque: "I like almost all cheeses, but every day I do eat the sheep cheese" - Ray Peat[49]
Fresh Cheeses
[edit]- Mozzarella, Oaxaca, and some kinds of feta often don't have harmful additives.
- Ricotta - The calcium content of ricotta can vary greatly depending on whether the whey is separated by acid or bacterial proteolysis.
Cottage cheese
[edit]If they haven't added anything, is very safe. But many brands add lactic acid and "dressing." By rinsing it, you lose about 30% of the weight, but it comes out to be a clean milk curd. (beware C:P 1:2)
Brands: Good Culture, Daisy, always check labels for gums/carrageenan
Cream cheese
[edit]Look for versions without gums or stabilizers
Avoid
[edit]- "Vegetable rennet" or "microbial enzymes"
- Carrageenan, guar gum, locust bean gum
- "Cultures" without specifying traditional/natural
- Industrial citric acid
- Anything that makes the cheese unexpectedly soft or moist
The D.O.P. designation on Italian cheeses is a reliable guide, it generally ensures traditional methods.
Milk myths and disease claims
[edit]IGF and cancer
[edit]Milk raises IGF-1, but Peat treats this as one regulatory factor among many rather than an isolated cancer trigger, and points to milk's tracked association with less dementia, not more disease, in long-term population data.
"It has some of the features of insulin, but it and insulin are just two of our regulatory factors. When one of them is slightly distorted, we have so many other regulatory systems that nothing really changes much. [...] A study of radiation effects in Japan looked at all factors of life and diet. They saw that people who didn't drink milk had a much higher risk of becoming demented in old age. A later study in the U.S. saw the same thing: milk has anti-dementia properties."
— Ray Peat[11]
On dairy and specific cancers, Peat separates prostate from other cancers rather than treating "dairy and cancer" as one question:
"Most of the evidence suggests that it increases prostate cancer but decreases other cancers, especially colon, and is protective in other ways. [...] If it decreases many other risks, it's healthful."
— Ray Peat[50]
Osteoporosis
[edit]The "milk causes osteoporosis" claim, popularized by comparing high milk-drinking countries' bone-density and fracture stats, doesn't control for Vitamin D status, in Peat's view.
"There is almost an organization of anti-milk people, and that's one of their worst publications. It is unscientific. Much of it is the lack of Vitamin D in those countries. If you compare someone in Vietnam who eats maybe 600 milligrams of calcium from vegetables, and someone in Sweden who might get 2,000 milligrams from milk and cheese, the people in Vietnam are outside a lot getting sunlight and Vitamin D. [...] Since milk production is high in the high-latitude countries, part of that effect is the lack of Vitamin D."
— Ray Peat[51]
The "finite osteoblast" premise sometimes used to support the claim does not hold: osteoblasts are continuously renewed rather than drawn from a fixed pool.[51]
Milk allergies
[edit]Food allergies have increased in industrialized countries due to degraded food supply from cheap mass production prioritizing durability over health. Industrial agriculture uses toxins, degrades soil, and increases plant defense chemicals like chitinase, causing most new allergies via cross-reactions with latex, fruits, and vegetables. Estrogen induces similar defensive proteins in humans, raising risks of asthma, celiac disease, autoimmune issues, and transplant rejection.
Milk allergies are rare (0.21% in newborns), often misdiagnosed, and outgrown by most children. Whole milk is typically allergen-free; reduced-fat versions may contain contaminants. Carrageenan in products is a strong allergen disrupting calcium. Lactose intolerance often tracks small-intestinal bacterial overgrowth linked to hypothyroidism and stress, not a permanent genetic enzyme blank. Hypothyroid patients show sharply higher breath-test SIBO rates than controls,[52] and bacterial products plus deoxycholate can strip brush-border lactase and other disaccharidases.[53] Adaptation still occurs with regular consumption; see Lactose.
"Another hormonal condition that probably contributes to lactase deficiency is progesterone deficiency, since a synthetic progestin has been found to increase the enzyme (Nagpaul, et al., 1990)."
— Ray Peat[2]
"If you haven't been a milk drinker, it's important to start with, for example, half a glass with each meal and then gradually build up over a few weeks because it takes time to induce enzymes such as lactase in your intestine."
— Ray Peat[28]
Bacterial overgrowth in the small intestine can be caused by hypothyroidism (Lauritano, et al., 2007), and the substances produced by these bacteria can damage the lining of the small intestine, causing the loss of lactase enzymes (Walshe, et al., 1990).
— Ray Peat[54]
Recipes
[edit]
Ice cream
[edit]Ray Peat Wiki|description=Ice cream as milk, sugar and fat in Ray Peat's framework: how milk, sugar and gelatin fit, with research notes and recipes.}}Ice cream combines Milk, Sugar, and fat. Mainstream epidemiology has reported inverse associations between moderate ice cream intake and cardiometabolic endpoints in some cohorts.[55]
Ray Peat did not write a dedicated ice cream article. His sleep and diet notes treat milk with sugar, salt, and Gelatin before bed as practical supports, a pattern ice cream approximates when made from milk, sugar, and minimal additives.[56] See Sleep, Honey, Roadmap/02 - Diet.
Milk, sugar, and gelatin
[edit]Glycine is recognized as an "inhibitory" neurotransmitter, and promotes natural sleep.
— Ray Peat[57]
Peat's glycemia writing treats sucrose and honey as metabolic fuels when thyroid and protein context are adequate, not as isolated high-glycemic villains.[58] Simple flavors (milk, cream, sugar, egg) match that framing better than industrial additive-heavy products.
Research notes
[edit]Polyphenol-enriched ice cream raised endothelial function markers in a small human crossover trial.[59]
A pooled analysis of the Nurses' Health Study, Nurses' Health Study II, and Health Professionals Follow-Up Study (Harvard T.H. Chan School of Public Health) found each daily serving of ice cream was associated with 22% lower type 2 diabetes risk. The association weakened to 11% once the researchers censored dietary updates after a hypertension or high cholesterol diagnosis, since sick participants tend to change their diet, which the authors flag as a likely source of reverse causation rather than a genuine protective effect.[60]
Against that, a 16-year Korean cohort found ice cream had the highest saturated fat content per serving of any dairy food studied, with higher intake tracking higher cardio-cerebrovascular disease incidence.[61] Peat would still pair any sugar food with adequate protein, minerals, and thyroid context, rather than reading either study as a green light on its own. See Harm reduction.
Recipes (Ice cream)
[edit]
References
[edit]- ↑ Ray Peat, "Sugar Issues," raypeat.com.
- ↑ 2.0 2.1 Ray Peat, "Milk in context: allergies, ecology, and some myths," raypeat.com.
- ↑ Ray Peat, "Bone Density: First Do No Harm," raypeat.com.
- ↑ Ray Peat, "A Casual Conversation with Ray Peat", Butter Living Podcast, 48:31
- ↑ Ray Peat, "Progesterone, Estrogen, Strokes, Milk, Sugars", One Radio Network, 1:05:47
- ↑ Ray Peat, "Ephemera", p. 231
- ↑ Ray Peat, "Fertility, Pregnancy, and Development", Butter Living Podcast, 3:41
- ↑ Bone Density: First Do No Harm, raypeat.com
- ↑ Dietary Guidelines, Ray Peat Forum
- ↑ Ambulkar S, Pethe A, "Review: Genetic and protein variants of milk caseins in goats," Frontiers in Genetics. 2022.
- ↑ 11.0 11.1 11.2 Ray Peat, "Ask the Herb Doctor: Milk", KMUD
- ↑ Clifford AJ, Ho CY, Swenerton H, "Homogenized bovine milk xanthine oxidase: a critique of the hypothesis relating to plasmalogen depletion and cardiovascular disease," American Journal of Clinical Nutrition. 1983;38(2):327-332. PMID 6349321.
- ↑ Ray Peat, "One Radio Network: Milk", One Radio Network
- ↑ Ray Peat, "Nutrition for Women", p. 95
- ↑ Macdonald LE, Brett J, Kelton D, et al. "A systematic review and meta-analysis of the effects of pasteurization on milk vitamins, and evidence for raw milk consumption and other health-related outcomes," J Food Prot. 2011;74(11):1814-1832. doi:10.4315/0362-028X.JFP-10-269. PMID 22054181.
- ↑ Ray Peat, "Dietary Guidelines," Ray Peat Forum Q&A compilation.
- ↑ Ray Peat, "EastWest Healing: Milk, Calcium and Hormones", EastWest Healing
- ↑ Ray Peat, "Gelatin, stress, longevity," raypeat.com.
- ↑ Ray Peat, "Tryptophan, serotonin, and aging," raypeat.com.
- ↑ Ray Peat, "Nutrition for Women", p. 17
- ↑ Ray Peat, "Dr. Peat Answers Questions Regarding Health, Diet and Nutrition Part One", One Radio Network, 1:00:19
- ↑ Ono T, Murakoshi M, Suzuki N, et al., "Potent anti-obesity effect of enteric-coated lactoferrin: decrease in visceral fat accumulation in Japanese men and women with abdominal obesity after 8-week administration of enteric-coated lactoferrin tablets," British Journal of Nutrition. 2010;104(11):1688-95. PMID 20691130.
- ↑ Caccavo D, Pellegrino NM, Altamura M, et al., "Antimicrobial and immunoregulatory functions of lactoferrin and its potential therapeutic application," Journal of Endotoxin Research. 2002;8(6):403-417. PMID 12542852.
- ↑ Ruiz-Rico M, Ye H, O'Callaghan TF, O'Toole PW, McCarthy EK, et al. "Iron-saturated bovine lactoferrin preserves microbiota diversity and healthy ageing-associated taxa in an in vitro colon model of elderly gut microbiota (Iron-saturated bovine lactoferrin impact on elderly gut microbiota)," PLoS One. 2025;20(9):e0332631. doi:10.1371/journal.pone.0332631. PMID 40961038.
- ↑ Kim BJ, Kuhfeld RF, Haas JL, et al. "Digestive Profiles of Human Milk, Recombinant Human and Bovine Lactoferrin: Comparing the Retained Intact Protein and Peptide Release," Nutrients. 2024;16(14):2360. doi:10.3390/nu16142360. PMID 39064803.
- ↑ Gilbert JA, Joanisse DR, Chaput JP, et al. "Milk supplementation facilitates appetite control in obese women during weight loss: a randomised, single-blind, placebo-controlled trial," Br J Nutr. 2011;105(1):133-143. PMID 21205360.
- ↑ Ray Peat, "EastWest Healing: Cholesterol and Saturated Fats", EastWest Healing
- ↑ 28.0 28.1 28.2 Ray Peat, "Ray Peat Interview with Tucker Goodrich, David Gornoski on PUFAs, Seed Oils, Benefits of Sugar, Milk", Tucker Goodrich and David Gornoski, 57:33
- ↑ Dai R, Hua W, Chen W, et al. "The effect of milk consumption on acne: a meta-analysis of observational studies," J Eur Acad Dermatol Venereol. 2018;32(12):2244-2253. doi:10.1111/jdv.15204. PMID 30079512. Overall OR 1.16; skim OR 1.24; full-fat OR 1.13.
- ↑ 30.0 30.1 Ray Peat, "Diving Deeply Into Health; Your Health Questions Answered", One Radio Network, 8:32
- ↑ Ray Peat, "Milk," Ray Peat Email Q&A, raypeatemails.com.
- ↑ X post
- ↑ First Steps Nutrition Trust, "Protein content of infant milks"
- ↑ @pikeypilled on X; see also MetaFilter, "Which mother's milk?"
- ↑ Ali AH, et al., "β-casomorphin-7: a review of occurrence, identification, techno-functionality, and effects on human health," npj Science of Food. 2026;10:116.
- ↑ Ratnayake WM, Sarwar G, Laffey P, "Influence of dietary protein and fat on serum lipids and metabolism of essential fatty acids in rats," British Journal of Nutrition 78(3):459-467, 1997, quoted in Ray Peat, Glycemia, starch, and sugar in context, raypeat.com.
- ↑ Ray Peat, "Ask the Herb Doctor: September 2021 KMUD", https://www.toxinless.com/kmud-210917.mp3, 36:24
- ↑ Ray Peat, "Mary Shomon Interview", https://wiki.chadnet.org/files/mary-shomon-interview.pdf
- ↑ Ray Peat, "Weight Loss for Women Podcast: The Truth About Estrogen Replacement Therapy, Calcium, and Milk Myths", https://search.wikipeatia.org/?doc=vtt-f516958c01d4, 65:50
- ↑ Ray Peat, Ray Peat email Q&A - Milk, raypeatemails.com.
- ↑ 41.0 41.1 Hertzler SR, Savaiano DA, "Colonic adaptation to daily lactose feeding in lactose maldigesters reduces lactose intolerance", American Journal of Clinical Nutrition 64(2):232-236, 1996.
- ↑ "Earliest evidence for cheese making in the sixth millennium bc in northern Europe - Nature"
- ↑ "Opioids, Cheese, & the Dreams of the Rarebit Fiend"
- ↑ Hu MJ, Tan JS, Gao XJ, Yang JG, Yang YJ, "Effect of Cheese Intake on Cardiovascular Diseases and Cardiovascular Biomarkers," Nutrients. 2022;14(14):2936. PMID 35889893. Per SD of intake: type 2 diabetes OR 0.46, heart failure 0.62, coronary heart disease 0.65, hypertension 0.67, ischemic stroke 0.76.
- ↑ Ray Peat, "EastWest Healing: Milk, Calcium and Hormones", EastWest Healing
- ↑ Ray Peat, email, Diet (General), raypeatemails.com.
- ↑ Ray Peat, Ephemera: Emails & Exchanges from the Archives (2012-2024).
- ↑ Ray Peat, "Ask the Herb Doctor: The Ten Most Toxic Things In Our Food", KMUD, 48:59
- ↑ Ray Peat, "One Radio Network: What is a virus anyway?", One Radio Network, 1:13:06
- ↑ Ray Peat, "Dietary Guidelines," Ray Peat Forum Q&A compilation.
- ↑ 51.0 51.1 Ray Peat, "Ask the Herb Doctor: Antioxidants", KMUD
- ↑ Lauritano EC, Bilotta AL, Gabrielli M, et al. "Association between hypothyroidism and small intestinal bacterial overgrowth," J Clin Endocrinol Metab. 2007;92(11):4180-4184. doi:10.1210/jc.2007-0606. PMID 17698907.
- ↑ Walshe K, Healy MJ, Speekenbrink AB, Keane CT, Weir DG, O'Moore RR. "Effects of an enteric anaerobic bacterial culture supernatant and deoxycholate on intestinal calcium absorption and disaccharidase activity," Gut. 1990;31(7):770-773. doi:10.1136/gut.31.7.770. PMID 1973395.
- ↑ Milk in context: allergies, ecology, and some myths
- ↑ Dairy products and the risk of type 2 diabetes: a systematic review and dose-response meta-analysis of cohort studies
- ↑ "Gelatin, stress, longevity," Ray Peat article
- ↑ "Gelatin, stress, longevity," Ray Peat article
- ↑ "Glycemia, starch, and sugar in context," Ray Peat article
- ↑ Natural antioxidant ice cream acutely reduces oxidative stress and improves vascular function and physical performance in healthy individuals
- ↑ Chen M, Sun Q, Giovannucci E, Mozaffarian D, Manson JE, Willett WC, Hu FB. "Dairy consumption and risk of type 2 diabetes: 3 cohorts of US adults and an updated meta-analysis." BMC Med. 2014;12:215. https://pubmed.ncbi.nlm.nih.gov/25420418/ Per daily serving HR 0.78; after censoring HR 0.89.
- ↑ Association of milk and dairy product consumption with the incidence of cardio-cerebrovascular disease incidence in middle-aged and older Korean adults: a 16-year follow-up of the Korean Genome and Epidemiology Study







