# Ray Peat Biologist; originator of the bioenergetic frame · 1936–2022 American biologist (PhD, University of Oregon, 1972) whose work on estrogen and progesterone seeded a fifty-year writing project on metabolism, thyroid, and protective steroids. His newsletter, books, and recorded interviews remain the corpus's primary substantive voice. 1785 sources · 1633 passages · 220 concepts · Top voice in 194 concepts Canonical page: https://bioenergeticoracle.com/voices/ray-peat ## In their own words > The relation of energy to structure is, I think, the central question of biology. Energy · Generative Energy: Restoring the Wholeness of Life · 1994 > Progesterone is anti-inflammatory, and reduces cellular excitation. Progesterone · RU486, cancer, estrogen, and progesterone. · 2007 > Thyroid promotes the formation of progesterone, which in turn promotes the secretion of thyroid hormones. Thyroid · Thyroid: Misconceptions · 1993 > People under stress, or who have a thyroid deficiency, or who don't eat enough protein, typically have elevated estrogen levels. Estrogen · Natural Estrogens · 2008 > The end product of respiration is carbon dioxide, and it is an essential component of the life process. CO2 · Resveratrol, rate of living, CO2, and aging · 2009 ## Against the grain Positions from Ray Peat that run counter to mainstream consensus. > the functions of the thyroid hormone are all inhibited by unsaturated fats, with the inhibition increasing in proportion to the number of unsaturations (double bonds) in the fat molecule Frames against: Counter to standard advice to increase polyunsaturated fat (omega-3/omega-6) intake PUFA · Unsaturated fatty acids: Nutritionally essential, or toxic? · 2008 > estrogen's "principle," in all of its actions, is to interfere with the respiratory mode of energy production Frames against: Counter to the standard framing of estrogen as protective rather than a stress-and-aging-promoting agent Estrogen · Estrogen and brain aging in men and women: Depression, energy, stress · 2009 > feeding enough sucrose to cause fat deposition in the liver can protect the liver from oxidative stress Frames against: Counter to standard advice to limit sugar and sucrose intake Sugar · Glucose and sucrose for diabetes. · 2012 > Serotonin excess produces a broad range of harmful effects: Cancer, inflammation, fibrosis, neurological damage, shock, bronchoconstriction, and hypertension Frames against: Counter to the popular framing of serotonin as the "happiness hormone" Serotonin · Tryptophan, serotonin, and aging · 2006 ## Most cited on The topics where Ray Peat accounts for the most cited passages — the percentage is their share of all cited passages on it. Open any to read the full encyclopedia entry. - [Cataracts](https://bioenergeticoracle.com/md/concepts/cataracts/index.md) — 100% - [Hashimoto's Thyroiditis](https://bioenergeticoracle.com/md/concepts/hashimoto-s-thyroiditis/index.md) — 100% - [Iodine](https://bioenergeticoracle.com/md/concepts/iodine/index.md) — 100% - [Phosphate](https://bioenergeticoracle.com/md/concepts/phosphate/index.md) — 100% - [Sugar (sucrose)](https://bioenergeticoracle.com/md/concepts/sugar-sucrose/index.md) — 100% - [Age Pigment (Lipofuscin)](https://bioenergeticoracle.com/md/concepts/age-pigment-lipofuscin/index.md) — 100% - [Albumin](https://bioenergeticoracle.com/md/concepts/albumin/index.md) — 100% - [Arthritis](https://bioenergeticoracle.com/md/concepts/arthritis/index.md) — 100% - [Caffeine](https://bioenergeticoracle.com/md/concepts/caffeine/index.md) — 100% - [Cholesterol](https://bioenergeticoracle.com/md/concepts/cholesterol/index.md) — 100% ## Ask about Ray Peat - What does Ray Peat say about polyunsaturated fats (PUFA)? - How does Ray Peat describe the roles of estrogen and progesterone? - Why does Ray Peat emphasize thyroid function and metabolic rate? ## Books Full-length works in the corpus. Buy links are Amazon affiliate links — see the [disclosure](https://bioenergeticoracle.com/legal/affiliate-disclosure). - Nutrition for Women (1993) - Generative Energy: Restoring the Wholeness of Life (1994) - From PMS to Menopause: Female Hormones in Context (1997) - Progesterone in Orthomolecular Medicine (1993) - Mind and Tissue: Russian Research Perspectives on the Human Brain (1976) ## Read Ray Peat directly - [raypeat.com](https://raypeat.com) - [Books](https://raypeat.com/products.shtml)