Home/ Supplements/ Zinc/ Opti-Zinc 30

Opti-Zinc 30

product on market Capsule Douglas Laboratories Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Zinc is supported by strong evidence for its role in immune function and cellular metabolism. Research indicates it is essential for protein synthesis and DNA replication. The current evidence coverage for this specific formulation is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Opti-Zinc 30
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
90
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

30 mg (200% DV)
2.7× RDA — within safe limits 263 studies (A:6, B:134)

Other Ingredients

Cellulose Gelatin Vegetable Stearate
Claims

Label Claims — Verification

Unverified All Other
Info

Product Information

Directions for Use

Suggested Usage: As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

Warnings & Precautions

KEEP OUT OF REACH OF CHILDREN.

Tamper resistant package, do not use if outer seal is missing.

Formulation Notes

This product contains NO yeast, wheat gluten, soy protein, milk/dairy, corn, sodium, sugar, starch, artificial coloring, preservatives or flavoring.

Additional Information

For optimal storage conditions, store in a cool, dry place. (59(0)-77(0)F/15(0)-25(0)C) (35-65% relative humidity)

Formula #7496

Metadata

Product Details

UPC / SKU3 10539 00321 3
DSLD Entry Date2012-06-01
Product TypeMineral
FormCapsule
BrandDouglas Laboratories
DSLD ID8835
Data Updated2026-04-11
Research

Research Evidence

397
Research Sources
55
Avg Quality
200
Meta Analysis
68
Rct
58
Systematic Review
53
Clinical Trial
9
Cochrane Review
2
Narrative Review
2
Regulatory Source
1
Observational
1
Other
1
Openfda Safety
A Zinc supplementation for improving pregnancy and infant outcome
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for preventing mortality, morbidity, and growth failure in children aged 6 months to 12 years
Narrative Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Oral zinc for treating diarrhoea in children
Meta Analysis The Cochrane database of systematic reviews 2016 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Zinc for the prevention or treatment of acute viral respiratory tract infections in adults: a rapid systematic review and meta-analysis of randomised controlled trials
Meta Analysis BMJ open 2021 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2010 PubMed DOI
A Zinc supplements for preventing otitis media
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Compression bandages or stockings versus no compression for treating venous leg ulcers
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Zinc supplementation for mental and motor development in children
Meta Analysis The Cochrane database of systematic reviews 2012 PubMed DOI
A Zinc for the common cold
Meta Analysis The Cochrane database of systematic reviews 2013 PubMed DOI
View all evidence for Zinc →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.