Expert Answer
Quick Answer
15-30mg daily for maintenance. Huberman recommends 90-100mg during illness (short-term only, 1-2 weeks). Chronic doses above 40mg/day deplete copper. 40% of Americans are deficient (Hyman).
Strong Consensus
on Zinc overall
90-100mg daily with food for cold prevention (short-term only).
~40% of Americans are zinc deficient. Recommends zinc carnosine for gut healing.
Quercetin acts as a zinc ionophore. Warns excess zinc inhibits magnesium absorption.
Recommends optimizing zinc alongside magnesium and vitamin D before considering hormone therapy.
Zinc dosage depends on context. For daily maintenance: 15-30mg. For acute immune support during illness: Huberman recommends 90-100mg daily with food, limited to 1-2 weeks.
Critical safety: chronic high-dose zinc above 40mg/day depletes copper. Patrick warns excess zinc also inhibits magnesium absorption. Balance zinc and copper at a 10:1 to 15:1 ratio.
Best forms: picolinate or bisglycinate for general use, zinc carnosine for gut healing (Hyman's 5R protocol), and pair with quercetin for enhanced intracellular delivery - Patrick explains quercetin acts as a zinc ionophore.
Meta-analyses show zinc reduces cold duration when taken within 24 hours of symptoms. Huberman recommends 90-100mg daily with food.
Zinc is essential for testosterone production. Attia recommends optimizing zinc, magnesium, and vitamin D before considering hormone therapy.
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