Immunity/Hormonal/Beauty

Zinc

An essential trace mineral critical for immune function, hormone regulation, wound healing, and over 300 enzymatic reactions in the body.

Zinc

An essential trace mineral critical for immune function, hormone regulation, wound healing, and over 300 enzymatic reactions in the body.

score

evidence

Caution

risk

Warning

Do not take without Copper — Zinc depletes copper; maintain a 10:1 zinc-to-copper ratio

Proven Benefits

01Supports innate and adaptive immunity

02May shorten common cold duration

03Supports healthy testosterone levels

04Reduces inflammatory acne lesions

05Promotes wound healing

06Supports taste and smell function

07Antioxidant and anti-inflammatory

Chemical Forms

Recommended

Zinc picolinate
Zinc bisglycinate (glycinate)
Zinc gluconate (lozenges for colds)
Zinc acetate (lozenges for colds)

Avoid

Zinc oxide (poor bioavailability)
Zinc sulfate (GI irritation common)

Expert Note

Chelated forms (picolinate, glycinate) absorb best

Protocol

Amount

15 mg - 30 mg

Frequency

daily

When

With a meal to reduce nausea

Condition-Based Dosing

General immune support and deficiency prevention

15 - 30 mg elemental zinc daily— RDA is 11 mg (men) and 8 mg (women); supplement on top of diet

Shortening common cold duration

75+ mg/day as lozenges (zinc acetate or gluconate)— Start within 24 hours of symptom onset; use for 5-14 days only

Acne treatment (adjunctive)

30 - 50 mg elemental zinc daily— Often as zinc gluconate or sulfate for 8-12 weeks; monitor copper

Testosterone support (in deficient men)

25 - 45 mg elemental zinc daily— Benefits seen primarily when correcting deficiency; limited effect if replete

Elderly immune function

15 - 25 mg elemental zinc daily— Nearly 30% of elderly are zinc deficient; pair with copper

Safety & Limits

Upper Safe Limit

40 mg/day elemental zinc (UL for adults)

Cycling

Safe for continuous use

Contraindications

Doses ≥50 mg/day without copper (copper deficiency risk)

Concurrent antibiotic use (zinc chelates quinolones, tetracyclines)

Penicillamine therapy (zinc reduces drug absorption)

Thiazide diuretics (increase urinary zinc excretion)

Kidney disease (impaired zinc and copper homeostasis)

Known allergy to zinc formulation ingredients

Synergies

CopperRequired

Zinc depletes copper; maintain a 10:1 zinc-to-copper ratio

Vitamin C

Complementary immune support; enhances antioxidant defense

Vitamin D3

Synergistic immune modulation; both common deficiencies

Magnesium

Supports enzymatic reactions that require both minerals

Avoid Combining With

✕Phytates (grains, legumes — reduce zinc absorption)
✕Calcium supplements (may inhibit zinc absorption)
✕Iron supplements (competes for absorption when taken together)
✕Coffee and tea tannins (reduce mineral absorption)
✕Casein in dairy (can bind zinc ions)

Updated 4/15/2026