Ray Peat (1936-2022) was a biologist, philosopher, and painter, with a primary interest in nutrition, aging, and hormones. For a more detailed introduction to his work, see Nate Lawrence's short introduction video.
NOTICE MAY 31 2025: Katherine's (the late Ray Peat's wife) publisher contacted us to remove Ray's newsletters and books. Out of respect for Ray's family, we have removed his 4 books and 88 newsletters from the site, preserving his newsletters that were published for free in different papers. They plan on republishing these in the coming months. If we obtain a public contact address, we will display it here.
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[4 entries removed] see notice
1971 Cold-Inactivated Enzymes as Metabolic Controls [PDF]1972 Estrogen Stimulated Pathway Changes and Cold-Inactivated Enzymes [PDF]1975 A Biophysical Approach to Altered Consciousness [PDF]
1975 A Holistic Physiology of Memory1975 A Revolution in Physics1976 Can Some "Anomalous" Structural Interactions Be Explained by an "Excitable Ether"?1976 Neutrinos and Long-Range Interactions1984 09 Education as Advertised in Napoleonic Times1984 Response to Recent Pop-Medicine Articles on Progesterone Therapy [PDF]1985 10 Vitamin A Toxicity [PDF]
1985 Energy, Entropy and Estrogens in Aging [PDF]1986 10 Iodine Injections [PDF]1987 01 The Progesterone Deception [PDF]1988 05 Unsaturated Oils Have Deleterious Effects [PDF]1989 02/03 Sales Pitch for Linseed Oil [PDF]1990 05 Emprise Should Evaluate Conventional and Alternative Treatments Comparatively [PDF]1990 05 Supplement Safety [PDF]1990 08/09 On Recycling Placentas, Thyroid Suppression and Carpal Tunnel [PDF]1991 02/03 Bowel Toxins Accelerate Aging Process [PDF]1994 11 Progesterone Can Be Taken Orally [PDF]1995 11 Ray Peat Responds to Dr. Davis [PDF]1995 02/03 Oral Progesterone is Not Inactivated by Stomach Acids, Pancreatic Enzymes or Liver Detoxification [PDF]1996 06 Concerns About Progesterone Cream and Yam Extracts [PDF]1996 08/09 Critiquing "Dr. McDaniel Responds" Letter [PDF]1990 10 Aspects Of Wholeness [PDF]1995 11 Ray Peat, PhD Replies [PDF]1997 06 Iron-Cumulative Danger [PDF]1997 Estriol, DES, DDT, etc.2000 06 Progesterone Content Corrected [PDF]2006 Aging, estrogen, and progesterone2006 Aging Eyes, Infant Eyes, and Excitable Tissues2006 Altitude and Mortality2006 Aspirin, brain, and cancer2006 Autonomic systems2006 Bleeding, clotting, cancer2006 Blocking Tissue Destruction2006 Caffeine: A vitamin-like nutrient, or adaptogen. Questions about tea and coffee, cancer and other degenerative diseases, and the hormones2006 Can art instruct science? William Blake as biological visionary2006 Coconut Oil2006 Diabetes, scleroderma, oils and hormones2006 Epilepsy and Progesterone2006 Estrogen and Osteoporosis2006 Immunodeficiency, dioxins, stress, and the hormones2006 Iron's Dangers2006 Leakiness, aging, and cancer2006 Menopause and its causes2006 Oils in Context2006 Osteoporosis, harmful calcification, and nerve/muscle malfunctions2006 Progesterone, Pregnenolone & DHEA — Three Youth-Associated Hormones2006 The problem of Alzheimer's disease as a clue to immortality2006 The transparency of life: Cataracts as a model of age-related disease2006 Thyroid: Therapies, Confusion, and Fraud2006 Tissue-bound estrogen in aging2006 Tryptophan, serotonin, and aging2006 Unsaturated Vegetable Oils: Toxic2006 Vegetables, etc. — Who Defines Food?2006 Vitamin E: Estrogen antagonist, energy promoter, and anti-inflammatory2007 Cholesterol, longevity, intelligence, and health2007 Estrogen, progesterone, and cancer: Conflicts of interest in regulation and product promotion2007 How do you know? Students, patients, and discovery2007 Preventing and treating cancer with progesterone2007 Progesterone Deceptions2007 Progesterone Summaries2007 RU486, Cancer, Estrogen, and Progesterone2007 Salt, energy, metabolic rate, and longevity2007 Stem cells, cell culture, and culture: Issues in regeneration2007 Suitable Fats, Unsuitable Fats: Issues in Nutrition2007 The Great Fish Oil Experiment2007 TSH, temperature, pulse rate, and other indicators in hypothyroidism2007 Unsaturated fatty acids: Nutritionally essential, or toxic?2008 Adaptive substance, creative regeneration: Mainstream science, repression, and creativity2008 Natural Estrogens2009 Academic authoritarians, language, metaphor, animals, and science2009 Calcium and Disease: Hypertension, organ calcification, & shock, vs. respiratory energy2009 Estrogen and brain aging in men and women: Depression, energy, stress2009 Estrogen, memory and heredity: Imprinting and the stress response2009 Fats and degeneration2009 Gelatin, stress, longevity2009 Glycemia, starch, and sugar in context2009 Intelligence and metabolism2009 Intuitive knowledge and its development2009 Lactate vs. CO2 in wounds, sickness, and aging; the other approach to cancer2009 Membranes, plasma membranes, and surfaces2009 Multiple sclerosis, protein, fats, and progesterone2009 Thyroid, insomnia, and the insanities: Commonalities in disease2009 Water: swelling, tension, pain, fatigue, aging2011 Milk in context: allergies, ecology, and some myths2012 Cascara, energy, cancer and the FDA's laxative abuse2012 Genes, Carbon Dioxide and Adaptation2012 Glucose and sucrose for diabetes2012 Osteoporosis, aging, tissue renewal, and product science2012 Pathological Science & General Electric: Threatening the paradigm2012 Protective CO2 and aging2012 Regeneration and degeneration: Types of inflammation change with aging2012 Serotonin, depression, and aggression: The problem of brain energy2012 Sugar issues2013 Fatigue, aging, and recuperation2013 Fats, functions & malfunctions2013 Growth hormone: Hormone of Stress, Aging, & Death?2013 Hot flashes, energy, and aging2013 Multiple sclerosis and other hormone-related brain syndromes2013 Phosphate, activation, and aging2013 Prostate Cancer2013 Rosacea, inflammation, and aging: The inefficiency of stress2013 When energy fails: Edema, heart failure, hypertension, sarcopenia, etc.2014 Cancer: Disorder and Energy2014 Cataracts: water, energy, light, and aging2014 Meat physiology, stress, and degenerative physiology2014 Physiology texts and the real world2015 Heart and hormones2015 Serotonin: Effects in disease, aging and inflammation2015 The Cancer Matrix2016 Mitochondria and mortality2016 The dark side of stress (learned helplessness)2021 Some Effects of Progesterone in MenAge Pigment: Cause and Effect of Aging and StressAsthma and Metabisulfite [PDF]Bone Density: First Do No HarmBreast CancerBSE — mad cow — scrapie, etc.: Stimulated amyloid degeneration and the toxic fatsEclampsia in the Real Organism: A Paradigm of General Distress Applicable in Infants, Adults, Etc.Education, Energy, and Ideology [PDF]Energy and Structure in Biological Water [PDF]Energy, structure and carbon dioxide: A realistic view of the organism [PDF]Progesterone, not estrogen, is the coronary protection factor of womenRosacea, Rhynophyma, Pterygium & Riboflavin — and Varicose Veins [PDF]Stress and WaterTransdermal Progesterone for Premenstrual Syndrome [PDF][88 entries removed] see notice
1986 02 Inhibition and Vitality [PDF]1988 01 Abnormal Cells in the Uterine Cervix [PDF]1988 06 AIDS/Syphilis Treatments & Ideas [PDF]1988 08/09 Natural Immunity and Viral Infections [PDF]1989 01 A New Approach to Detoxifying [PDF]1989 05 The Edema of Stress [PDF]1989 11 Repairing Immunodeficiencies [PDF]1989 08/09 Szent-Györgyi's Energy [PDF]1990 12 Education Against Knowledge [PDF]1991 01 Solving Some of the Problems of Aging [PDF]1991 04 Estrogen in 1990 [PDF]1991 06 Biological Balance and Addictions [PDF]1991 07 Sharks, Salmon & Osmotic Therapies [PDF]1991 The Generality of Adaptogens [PDF]1992 06 Resistance of the Heart [PDF]1992 11 Origins of Progesterone Therapy [PDF]1992 12 Failures of Immunity [PDF]1992 02/03 Taxol, Yew & Cancer [PDF]1992 08/09 Brain Aging [PDF]1993 11 Thyroid: Misconceptions [PDF]1993 The Bean Syndrome [PDF]1994 04 Insomnia & Hyperactivity [PDF]1994 06 Mortality Again [PDF]1994 07 Chronic Fatigue [PDF]1994 11 Criticism and the Experts [PDF]1995 07 Food-junk and some mystery ailments: Fatigue, Alzheimer's, Colitis, Immunodeficiency1995 09 Regeneration and the Anti-adaptogens [PDF]1995 08/09 Aging Ovaries: Not the Eggs [PDF]1996 04 Diagnosing Porphyria for Labor and Industries Claims [PDF]1996 04 Osteoporosis and the Skin [PDF]1996 06 Sunlight: Using It to Enhance Life [PDF]1996 06 Using Sunlight To Sustain Life [PDF]Steroids, Thyroid [PDF]1960 06 Master's Thesis: William Blake and the Mysticisms of Sense and Non-Sense [PDF]1972 09 PhD Thesis: Age-Related Oxidative Changes in the Hamster Uterus [PDF]1984 03 United States Patent: Treatment of Progesterone Deficiency and Related Conditions with a Stable Composition of Progesterone and Tocopherols [PDF]1986 12 United States Patent: Pharmaceutical Compositions Containing Dehydroepiandrosterone and Other Anesthetic Steroids in the Treatment of Arthritis and Other Joint Disabilities [PDF]Library of Chadnet | wiki.chadnet.org
