Zinc Picolinate
Mineral ·Exploratory record · not publication-reviewed ·Updated July 13, 2026
Highly bioavailable zinc form chelated with picolinic acid.
Exploratory record, not a reviewed medical publication.
See the editorial and medical-review policies for the publication gate.
This generated database record has not completed a claim-level review by a qualified human medical reviewer. Bibliography links and evidence labels are not approval. The page remains available for reference and is excluded from search indexing.
What the research says.
A quick, data-only summary. The full evidence, dosing, and sources are below.
Zinc Picolinate is a mineral most often used for immune support, skin health, testosterone support. NutriStack rates the overall evidence as strong. A typical adult dose is 15-30 mg daily, commonly taken as zinc picolinate capsules. This profile indexes 10 sources.
The bottom line
Evidence rating strong. Most-documented uses: immune support, skin health, testosterone support. 10 sources indexed (1987–2025), with 0 interaction records on file.
How it works, mechanistically.
Core mechanism
Picolinic acid (a tryptophan metabolite) facilitates zinc transport across intestinal epithelium. Better absorbed than zinc oxide or sulfate.6,1
Dosing & protocol.
What it actually costs.
Real-world pricing across three quality tiers. Assumes Zinc Picolinate.
Assumes 15-30 mg/day from goal dosage. Vendor basis: NOW/iHerb, Vitacost, Thorne, and Amazon marketplace; standalone zinc picolinate remains low cost. Updated 2026-05-28.
The same dose, as food.
How much you'd eat to match a supplemental dose.
Therapeutic zinc doses are hard to maintain from food alone every day.
Full safety detail.
Sources, by evidence tier.
Numbered references. Citations throughout the page link here.
Meta-analyses & systematic reviews
4- 1Effect of zinc supplementation on premenstrual symptoms: A systematic review and meta-analysisPMIDKim YM, Baek J · Women & health · 2025
Kim YM, Baek J. Effect of zinc supplementation on premenstrual symptoms: A systematic review and meta-analysis. Women & health. 2025
- 2Serum zinc levels and efficacy of zinc treatment in acne vulgaris: A systematic review and meta-analysisPMIDYee BE et al. · Dermatol Ther · 2020
Meta-analysis found acne patients have lower serum zinc levels and zinc supplementation effectively reduces acne lesion counts.
- 3Zinc Supplementation and Body Weight: A Systematic Review and Dose-Response Meta-analysis of Randomized Controlled TrialsPMIDAbdollahi S, Toupchian O, Jayedi A et al. · Advances in nutrition (Bethesda, Md.) · 2020
Abdollahi S, Toupchian O, Jayedi A et al.. Zinc Supplementation and Body Weight: A Systematic Review and Dose-Response Meta-analysis of Randomized Controlled Trials. Advances in nutrition (Bethesda, Md.). 2020
- 4Zinc Supplementation Reduces Common Cold Duration among Healthy Adults: A Systematic Review of Randomized Controlled Trials with Micronutrients SupplementationPMIDWang MX, Win SS, Pang J · The American journal of tropical medicine and hygiene · 2020
Wang MX, Win SS, Pang J. Zinc Supplementation Reduces Common Cold Duration among Healthy Adults: A Systematic Review of Randomized Controlled Trials with Micronutrients Supplementation. The American journal of tropical medicine and hygiene. 2020
Randomized controlled trials
1- 5Comparative absorption of zinc picolinate, zinc citrate and zinc gluconate in humansPMIDBarrie SA et al. · Agents Actions · 1987
In a crossover trial of 15 healthy subjects given 50 mg elemental zinc for 4 weeks, zinc picolinate was the only form that significantly increased zinc levels in hair, urine, and erythrocytes versus placebo.
Reviews & position papers
4- 6Comparative Absorption and Bioavailability of Various Chemical Forms of Zinc in Humans: A Narrative ReviewPMIDSiepmann M et al. · Nutrients · 2024
Comprehensive review comparing zinc picolinate, glycinate, citrate, gluconate, and oxide bioavailability in humans, noting picolinic acid facilitates zinc transport across intestinal epithelium.
- 7Role of zinc in health and diseasePMIDPal A et al. · Clin Exp Med · 2024
Comprehensive review of zinc's role in immune function, showing zinc is critical for innate and adaptive immunity, with deficiency leading to decreased natural killer cell activity and thymulin levels.
- 8Correlation between serum zinc and testosterone: A systematic reviewPMIDTe L et al. · J Trace Elem Med Biol · 2023
Systematic review of 38 papers found zinc deficiency reduces testosterone levels and supplementation improves them; effect varies by dosage form, dose, and duration.
- 9Zinc requirements and the risks and benefits of zinc supplementationPMIDSandstead HH, Au W · J Trace Elem Med Biol · 2007
Review of zinc supplementation safety noting risk of copper depletion with chronic high-dose supplementation (>25 mg/day) and recommended copper co-supplementation.
Reference material
1Common questions.
Quick answers about Zinc Picolinate, drawn from the data on this page.
What is Zinc Picolinate?
Highly bioavailable zinc form chelated with picolinic acid.
What is Zinc Picolinate used for?
Commonly cited benefits of Zinc Picolinate include: Immune support; Skin health; Testosterone support. NutriStack rates the overall evidence as strong.
What is a typical dose of Zinc Picolinate?
A typical adult dose of Zinc Picolinate is 15-30 mg daily. The commonly recommended form is Zinc picolinate capsules. These are general ranges, not personalized advice; confirm the right dose with a clinician.
What are the side effects of Zinc Picolinate?
Reported side effects include nausea, metallic taste, copper depletion long-term. This is educational information; check with a healthcare professional before use.
How strong is the evidence for Zinc Picolinate?
NutriStack rates this as Strong, meaning multiple high-quality meta-analyses or systematic reviews converge on the same finding. Full tier criteria are at https://nutristackapp.com/methodology/evidence-tiers.
Deep dives & adjacent profiles.
This page is educational. Do not start, stop, or change a supplement or medication based on it without checking with a qualified healthcare professional.
Use this with your stack
Zinc Picolinate in NutriStack.
Add it to your stack, see how it interacts with everything else you take, and get a Stack Score that updates the moment it does.