4 Key Reasons Dr. Peat Recommended Sugar 🍊
(01:14) “Energy and structure are interdependent at every level” - Ray Peat, PhD
(03:22) Why glucose is the optimal fuel
(05:51) Ray Peat’s logical framework vs low-carb assumptions
(08:21) Why bioenergetics explains dietary paradoxes (10:27) Ray Peat Quote on Sugar & Oxidative metabolism
(14:42) Benefits of CO₂
(22:15) Sugar’s support for oxidative metabolism
(26:34) Ray Peat Clip on: Sugar and the thyroid: T4 → T3 conversion
(42:15) Dr. Ray Peat Clips on Sugar Lowering Stress (45:30) What happens when your blood sugar drops (50:18) What are the roles of the stress hormones? (53:57) Transient rise in cortisol on low-carb?
(59:17) High protein and cortisol
(1:01:32) Is glucagon a stress hormone?
(1:06:19) Dr. Ray Peat on anti-inflammatory effects on insulin & sugar
(01:19:02) Why high insulin isn’t the goal
(01:22:13) Hypoglycemia is directly inflammatory (01:23:05) Hypoglycemia increases clotting and vascular inflammation
(01:28:14) Dr. Ray Peat on the ideal sources of sugar (01:31:30) Potassium depletion reduces insulin action (01:34:45) Diuretics, ARBs, potassium retention, and insulin sensitivity
(01:36:58) Calcium’s anti-obesity and metabolic effects
(01:39:08) Why Dr Ray Peat paired dairy + fruit
(01:42:00) Ideal potassium, sodium, calcium, magnesium targets
(01:43:23) Why Ray Peat’s work gets misrepresented & honoring Ray Peat’s legacy
The Sugar Diet & Sugar Fasting Trend Has Taken Over
After 10 Years on High Sugar Diet... Here is my:
• Fasting Blood Glucose
• Fasting Insulin
• Hemoglobin A1C
• Liver Function Tests
• Continuous Glucose Monitor Tracings
• Lipid Panel
• Body Composition
• Full day of eating
6. Low Iron Content
“However, for an adult, the low iron content of milk and cheese makes these foods useful for preventing the iron overload that often contributes to the degenerative diseases.” – Ray Peat
• Iron overload is a significant health concern due to irons ability to create oxidative stress
• Dairy products provide high protein, low PUFA, low iron options to incorporate into the diet. This helps to prevent the build up of iron in the tissues overtime, especially for individuals who are predisposed to iron overload.
5. Supports The Growth of Non-Pathogenic Bacteria
• Its well known, even in the mainstream that Dairy improves the microbiome. This is particularly the case with fermented dairy.
• The beneficial bacterial species such as lactobacillus, and bifidobacteria are directly supported by components in milk.
4. Sugars In Milk Help to Keep Cortisol Lower
“The presence of lactose in milk, and of fat, to slow absorption of the amino acids, helps to minimize the secretion of cortisol. Combining milk and cheese with fruits adds to the anti-stress effect. The additional sugar and potassium and other minerals allow the milk protein to be used more efficiently, by moderating the secretion of cortisol, and helping to inhibit the secretion of PTH." – Ray Peat
• As I have discussed in previous videos and posts higher carbohydrate diets are associated with significantly lower levels/ changes in metabolism of stress hormones like cortisol.
• Also, higher carbohydrate diets tend to lead to lower cortisol spikes when people are exposed to stressors like exercise and cold exposure (see graph below).
• With dairy being a good source of carbohydrates, if lactase persistent, its a great way to add carbs to your diet with high quality protein, fats, and vitamins/ minerals
3. Lack of Polyunsaturated Fats
“Although the high quality protein and saturated fat undoubtedly contribute to milk's anti-obesity effect, the high calcium content is probably the main factor.” - Ray Peat
• Dairy products are quite low in Polyunsaturated fats (only around 2-3% on average)
• Dairy fats are rich in specialized trans fats like conjugated linoleic acid, and trans vaccenic acid which have unique health benefits
• Dairy fats are rich in odd chain fatty acids like pentadecanoic acid C15, which is currently being researched for a variety of health benefits
2. Dairy Protein Are The Highest Quality Proteins
“The amino acid composition and nutritional value of leaf protein is similar to milk protein, which is understandable since cows produce milk from the amino acids produced in their rumens by bacteria digesting the leaves the cows have eaten. The bacteria perform the refining processes that Pirie believed could be done technologically, and they also degrade or detoxify the major toxins and allergens.” – Ray Peat
• High Protein Efficiency Ratio —> Supports Tissue Growth
• High Net Protein Utilization/ High Biologic Value —> Efficiently used by the body
• High Protein Digestibility Corrected Amino Acid Score —> Contains the needed amino acids
1. High Calcium Content to Suppress PTH
“The parathyroid hormone (PTH) is an important regulator of calcium metabolism. If dietary calcium isn’t sufficient, causing blood calcium to decrease, the PTH increases, and removes calcium from bones to maintain a normal amount in the blood. PTH has many other effects, contributing to inflammation, calcification of soft tissues, and decreased respiratory energy production.” – Ray Peat
High Levels Of Parathyroid Hormone Are Associated With:
• Cardiovascular Disease
• Vascular Calcification
• Chronic Kidney Disease
• High Blood Pressure
• Decreased Bone Mass
• Etc
Corroborating Dr. Peat’s Work — The Calcium in Dairy Lowers PTH In a Dose Dependent Manner
• 250 to 1g of Calcium lead to 14 to 24pg/ml drop in PTH
“2 Quarts of Milk & a Quart of Orange Juice”
The Famous Dietary Recommendation Dr. Ray Peat Mentioned in Numerous Interviews.
But what is the reasoning for this recommendation.
In this thread we will break down the 7 Key Reasons To Eat Dairy, pulled directly from Dr. Peat’s Article
”Milk in context: allergies, ecology, and some myths”







