Ray Peat

In their own words

• 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

  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

  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

  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

  Counter to the popular framing of serotonin as the "happiness hormone"

  Serotonin·Tryptophan, serotonin, and aging·2006