THYROID – by Raymond Peat, PhD
Chapter 11, from FROM PMS to MENOPAUSE: Female Hormones in Context
This book, and all of Dr. Peat’s books can be purchased by writing to: Raymond Peat, PhD, PO Box 5764, Eugene, OR 97405 USA
“Besides fasting, or chronic protein deficiency, the common causes of hypothyroidism are excessive stress or “aerobic” (i.e., anaerobic) exercise, and diets containing beans, lentils, nuts, unsaturated fats (including carotene), and undercooked broccoli, cauliflower, cabbage, or mustard greens. Many health conscious people become hypothyroid with a synergistic program of undercooked vegetables, legumes instead of animal protein, oils instead of butter, carotene instead of vitamin A, and breathless exercise instead of a stimulating life.
A good diet, plus a supplement of either thyroid or progesterone, can often break the cycle of hormonal imbalance.
If a person has at least a normal level of cholesterol, it is very likely that a progesterone deficiency can be corrected by normalizing the thyroid function, since thyroid, vitamin A, and cholesterol are the main factors in the synthesis of progesterone. If the problem is that the ratio of estrogen to progesterone is too high, though progesterone might itself be at a reasonable level, thyroid becomes crucial, to bring the estrogen level down to normal. In hypothyroidism there is a tendency to develop cystic ovaries, and low thyroid function normally leads to estrogen dominance, even if the ovaries seem normal.”
Read more here: Chapter 11.