Snapshot · Huberman Lab
Alcohol significantly increases aromatase (converting testosterone to estrogen) and is GABAergic, reducing LH and FSH; Gillett recommends no more than 3–4 standard drinks per two weeks.
Where this was said
At 35:15 · chapter starts 34:56
A tightly packed segment on alcohol unpacks its triple threat to testosterone. First, the aromatase connection: alcohol significantly and dose-dependently up-regulates aromatase, the enzyme that converts testosterone into estrogen. Second, the neurological angle: alcohol is highly GABAergic, activating inhibitory neurotransmission in a way that suppresses LH and FSH release from the pituitary — a mechanism Gillett explicitly compares to opiates. Third, the metabolic hit: at 7 kilocalories per gram, alcohol carries nearly the caloric load of fat (9 kcal/g), adding to body fat accumulation that further amplifies aromatase. Gillett's practical recommendation is no more than 3–4 standard drinks per two weeks — and notes that one large glass of wine likely counts as about 5 standard drinks.
Alcohol significantly increases aromatase activity, converting testosterone to estrogen. It's also highly GABAergic, suppressing LH and FSH release much like opiates do. And at 7 kcal/gram, it's nearly as calorie-dense as fat. Dr. Gillett recommends no more than 3–4 standard drinks per two weeks.
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