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Plasma levels of DHEA in adult men are 10 to 25 nM, in premenopausal women are 5 to 30 nM, and in postmenopausal women are 2 to 20 nM. [25] Conversely, DHEA-S levels are an order of magnitude higher at 1–10 μM. [25] Levels of DHEA and DHEA-S decline to the lower nanomolar and micromolar ranges in men and women aged 60 to 80 years. [25]
DHEA-S levels throughout life in humans. [28] DHEA and DHEA-S are the most abundant circulating steroids in the body. [29] Plasma levels of DHEA-S are 100 or more times higher than those of DHEA, 5 to 10 times higher than those of cortisol, 100 to 500 times those of testosterone, and 1,000 to 10,000 times higher than those of estradiol. [30] [3]
Prasterone, also known as dehydroepiandrosterone (DHEA) and sold under the brand name Intrarosa among others, is a medication as well as over-the-counter dietary supplement which is used to correct DHEA deficiency due to adrenal insufficiency or old age, as a component of menopausal hormone therapy, to treat painful sexual intercourse due to vaginal atrophy, and to prepare the cervix for ...
DHEA levels are lower in those with depression, so supplementation may help. A 2005 placebo-controlled study looked at men and women aged 45 to 65 with midlife-onset major or minor depression.
Normal circulating levels of pregnenolone are as follows: [17] Men: 10 to 200 ng/dL; Women: 10 to 230 ng/dL; Children: 10 to 48 ng/dL; Adolescent boys: 10 to 50 ng/dL; Adolescent girls: 15 to 84 ng/dL; Mean levels of pregnenolone have been found not to significantly differ in postmenopausal women and elderly men (40 and 39 ng/dL, respectively ...
It continues throughout puberty, with adrenal androgen levels progressively increasing until reaching maximal levels in young adulthood, around the age of 20 years. [1] [5] Circulating DHEA-S levels specifically peak in humans at about age 19 or 20 years in females and around age 20 to 24 years in males. [2]
Norwitz noted there are several research studies showing the benefits of the carnivore diet, including a Harvard study of 2,029 participants that found "high levels of satisfaction and ...
For most substances presented, the optimal levels are the ones normally found in the population as well. More specifically, optimal levels are generally close to a central tendency of the values found in the population. However, usual and optimal levels may differ substantially, most notably among vitamins and blood lipids, so these tables give ...