Zinc
Mineral10 forms compared ↓
Also known as: Zn, Zinc ion, ZMA, Zinc (Wound Healing), Zinc (Immune Support)
A
Grade A💊 15-30mg daily🎯 12 primary uses🔗 2 synergies⚠️ Review warnings
Levels upNutrition+50 pts
Overview
Essential mineral critical for immune cell development and function. Can reduce duration of common cold when taken at onset.
Primary Uses
Depression supportImmune functionTaste/smellTestosteroneRecoveryProtein synthesisWound healingTissue repairSurgery recoveryCold/flu supportImmune cell functionThyroid hormone metabolism
Frequently Asked About Zinc
How much Zinc should I take?
The typical effective range is 15-30 mg + 1-2 mg copper. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take Zinc?
With food. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take Zinc with food?
Yes, reduces nausea.
What is the best form of Zinc?
Zinc Picolinate is generally the best-absorbed form (Zinc bound to picolinic acid). Cheaper forms exist but often deliver less usable Zinc per dose.
Does Zinc interact with medications?
Yes — known interactions include Separate from antibiotics. If you take any prescription medication, talk to your doctor or pharmacist before starting Zinc.
What does Zinc pair well with?
Zinc stacks well with Copper (if long-term) and Vitamin C — these combinations either improve absorption or work synergistically toward common goals.
Who should not take Zinc?
Zinc should be avoided or used with caution by people with None at normal doses. Pregnant or breastfeeding women should consult a healthcare provider before use.
Compare Forms
10 formsDifferent chemical forms vary in absorption, side effects, and best use cases. Higher bioavailability scores indicate better absorption.
Zinc Picolinate
HIGH 100Zinc bound to picolinic acid
Best for:General supplementationImmune supportSkin health
💡 Excellent absorption. Picolinic acid enhances uptake.
✅ Pros
- • Best absorption
- • Well-tolerated
- • Doesn't compete with copper as much
⚠️ Cons
- • More expensive
📝 Gold standard for zinc supplementation
Zinc Glycinate
HIGH 95Zinc chelated with glycine amino acid
Best for:General supplementationSensitive stomachs
💡 Excellent absorption, gentle on stomach
✅ Pros
- • Great absorption
- • Very gentle
- • Well-tolerated
⚠️ Cons
- • Slightly more expensive
📝 Excellent alternative to picolinate
Zinc Bisglycinate
HIGH 95Zinc chelated with two glycine molecules
Best for:General supplementationSensitive stomachs
💡 Excellent absorption, very gentle
✅ Pros
- • Great absorption
- • Extremely gentle
⚠️ Cons
- • Higher cost
📝 Same as glycinate, different naming
Zinc Monomethionine
HIGH 90Zinc bound to methionine amino acid (OptiZinc)
Best for:General supplementationAcneSkin health
💡 Very good absorption. Methionine adds antioxidant benefits.
✅ Pros
- • Great absorption
- • Antioxidant support
- • Skin benefits
⚠️ Cons
- • Brand name (OptiZinc) adds cost
📝 OptiZinc brand - good for skin/acne
Zinc Citrate
HIGH 85Zinc bound to citric acid
Best for:General supplementationBudget-conscious
💡 Good absorption at reasonable cost
✅ Pros
- • Good absorption
- • Affordable
- • Widely available
⚠️ Cons
- • Not quite as good as picolinate
📝 Good budget-friendly option
Zinc Carnosine
HIGH 85Zinc combined with L-carnosine
Best for:Gut healthH. pyloriStomach ulcersGI repair
💡 Good absorption. Specifically designed for gut healing.
✅ Pros
- • Gut healing properties
- • H. pylori support
- • Stomach lining repair
⚠️ Cons
- • Specialized use
- • Higher cost
📝 PepZin GI brand - excellent for gut issues
Zinc Acetate
GOOD 80Zinc salt with acetic acid
Best for:Cold lozengesImmune support
💡 Good absorption. Releases ionic zinc in lozenges.
✅ Pros
- • Effective in lozenges
- • Releases ionic zinc
⚠️ Cons
- • Metallic taste
- • Best for lozenges
📝 Best form for cold lozenges
Zinc Gluconate
GOOD 75Zinc bound to gluconic acid
Best for:LozengesBudget option
💡 Moderate absorption
✅ Pros
- • Affordable
- • Common in lozenges
⚠️ Cons
- • Lower absorption than chelated forms
📝 Common but not optimal
Zinc Sulfate
GOOD 65Inorganic zinc salt
Best for:Medical/prescription use
💡 Moderate absorption but can cause nausea
✅ Pros
- • Inexpensive
- • Effective
⚠️ Cons
- • Can cause nausea
- • GI upset common
📝 Often causes stomach upset
Zinc Oxide
GOOD 60Zinc bound to oxygen
Best for:Topical use (sunscreen, diaper rash)
💡 Poor oral absorption
✅ Pros
- • Excellent for topical use
- • High elemental zinc
⚠️ Cons
- • Poor oral bioavailability
📝 Best for topical, not oral supplementation
Dosage
Typical range
15-30mg daily
Timing
With food
With food
Yes, reduces nausea
Dose Tiers
RDA / DV
8-11 mg
Moderate
15-30 mg
Optimal
15-30 mg + 1-2 mg copper
Therapeutic
75-150 mg
Upper Limit
40 mg
Duration
Long-term at moderate doses
Special Populations
Vegetarians often need more
Research & Studies
Landmark clinical studies on Zinc. Each title links to a plain-English breakdown — what the study shows, what its limitations are, and how to read around them.
- Zinc lozenges and the common cold: a meta-analysis comparing zinc acetate and zinc gluconate, and the role of zinc dosage
Meta-analysis of 7 RCTs (n=575) found zinc lozenges (≥75mg/day elemental zinc) shortened cold duration by ~33%, with no significant difference between acetate and gluconate forms.
- Oral zinc for the common cold (Cochrane Review)
Cochrane review of 18 RCTs found zinc reduced common cold duration and severity in healthy adults when taken within 24 hours of symptom onset, though adverse effects (taste disturbance, nausea) were common.
Browse all curated studies →
Mechanism of Action
- • Cofactor for 300+ enzymes
- • Immune cell function
- • DNA synthesis
- • Protein metabolism
Evidence Quality
Evidence Grade A
Essential mineral with strong immune and healing evidence
Safety & Contraindications
Serious Warnings
- • Excess depletes copper
Contraindications
- • None at normal doses
Common Side Effects
- • Nausea if empty stomach
Pregnancy & Breastfeeding
Likely safe at normal doses - consult provider
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • Separate from antibiotics
🧪 Supplements
- • Balance with copper long-term
🍽️ Food & Alcohol
- • Meat, shellfish, legumes
Stacking & Synergies
Pairs Well With
Avoid Combining With
Iron same time
Best Goal Synergies
ImmuneTestosteroneSkin
Buying Guide
What to Look For
- • Form specified
Standardization Markers
Elemental zinc stated
Adulteration risk
Low
Practical Notes
- • Balance with copper long-term
- • Test levels if concerned
- • ZMA popular for athletes
- • Higher doses during healing
- • Return to maintenance after
- • Lozenges must dissolve in mouth for cold effect
- • Take with food to avoid nausea
- • Often low in hypothyroid
- • Separate from thyroid meds
- • Especially important for male fertility
- • Start 3+ months before (sperm cycle)
- • Balance with copper
- • Don't exceed 40mg long-term
- • Prostate needs zinc but not excess
- • Take with food
- • Balance with copper if >30mg long-term
Tags
mineralmooddepressionimmunetestosteronerecoverywoundhealingsurgeryessentialcoldthyroidhormonefertilityspermprostateantioxidant
Top Products with Zinc
Highest-scored catalog products containing Zinc, ranked by our scoring engine.
Zinc Bisglycinate 30 mgThorne96
Zinc Picolinate 30 mgThorne96
Zinc Bisglycinate 15 mgThorne91
Calcium + Magnesium + Zinc Citrates with Vitamin D3 PowderNutricost90
Related Guides
In-depth guides covering Zinc — protocols, comparisons, and use cases.
More in Mineral
Other ingredients in the Mineral category.
Boron
Trace mineral supporting bone health, cognitive function, and hormone metabolism. May support testosterone in deficient states.
Calcium
Essential mineral for bone health, muscle function, nerve signaling, and blood clotting.
Calcium Carbonate
Common, economical calcium form with highest elemental calcium percentage. Requires stomach acid for absorption.
Calcium Citrate
Well-absorbed calcium form that doesn't require stomach acid. Better for those on acid-reducing medications.
Chloride
Essential electrolyte mineral that works with sodium and potassium to maintain fluid balance, nerve transmission, and stomach acid production.
Chromium Picolinate
Trace mineral for insulin sensitivity and blood sugar regulation. Popular for carb cravings.
Last reviewed: September 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, September). Zinc — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/zinc
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.