Timing Protocol

When to Take Zinc

What researchers say about when, how and with what to take zinc, and how strong the evidence is.

The verdict on Zinc overall

Leaning for

Zinc supplements are worth taking.

6 sources: 2 positive, 4 partly

6 sources: 2 positive, 4 partly

Based on what researchers say in publicly available videos, not medical advice. Always consult your healthcare provider before starting, stopping, or changing any supplement.

Short answer

Take it with meals to reduce nausea and help absorption. Keep it apart from high-dose iron or calcium, which compete with it. If you take high-dose zinc (90-100mg) for a cold, stop after 1-2 weeks to protect your copper.

Full Protocol

Timing
Take it with meals to reduce nausea and help absorption. Keep it apart from high-dose iron or calcium, which compete with it. If you take high-dose zinc (90-100mg) for a cold, stop after 1-2 weeks to protect your copper.
Dosage
Maintenance: 15-30mg elemental zinc daily from food and/or supplements. During illness: 90-100mg daily, short-term, with food (Andrew Huberman). Gut healing: zinc carnosine at 75-150mg daily. Fertility: part of protocols with CoQ10, L-carnitine and omega-3s.
Form
Zinc picolinate or zinc bisglycinate for general use (better absorbed). Zinc carnosine for gut healing and acid reflux. Zinc citrate as a cheaper option. Avoid zinc oxide, which absorbs poorly. Quercetin helps carry zinc into cells.
Notes
Do not take more than 40mg/day long-term without a doctor: chronic high-dose zinc depletes copper and can cause copper deficiency anemia. Balance zinc with copper at roughly a 10:1 to 15:1 ratio. Keep high doses for acute illness only. Oysters are the most bioavailable source, then red meat, pumpkin seeds and dark chocolate. Plant sources (legumes, seeds) carry phytates that cut absorption; soaking, sprouting or cooking helps.

What the evidence says about timing

One verdict, worked out from every counted mention. One dot is one source: a researcher or a study. Tap a dot to see its receipt.

positive partly neutral negative Each researcher and each study counts once per claim, however often they come up.

Not enough evidence

Taking 90 to 100 mg of zinc for longer than 1 to 2 weeks depletes copper.

No counted mention yet.

Where the sources disagree

Built from every credited researcher and cited study on each claim.

Leaning for

Zinc supplements are worth taking.

Supports it 2 sources
Partly 4 sources

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