40:06

Live Q&A by Ben Greenfield (May 2013) about sex, libido, hormones and related lifestyle/supplement strategies. Ben answers audience questions on identifying low testosterone qualitatively, dietary/ supplement aphrodisiacs (zinc, oysters, dark chocolate, watermelon, nitric-oxide precursors, adaptogens, D-aspartic acid), managing alcohol's sexual effects, timing of hormonal peaks (men 8–10am, women 4–6pm), interactions among adrenals/thyroid/liver/gut, and practical tips for restoring hormones (vitamin D, zinc, boron, fish oil, selenium/Brazil nuts). The tone is informal, candid, and anecdotal, with frequent product and protocol suggestions.

Questions this video answers

Approximately 40–60 ng/mL

About 35 international units (IU) of vitamin D per pound of body weight (commonly ~3,000–6,000 IU/day for many people)

Above 100 ng/mL

About 3 grams (roughly one teaspoon) per day

Between about 8:00 and 10:00 AM

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