What is supplement substantiation?

Substantiation is the process of gathering and documenting scientific evidence that supports the health claims you make on your supplement labels and marketing materials. The FDA requires that all structure–function claims be truthful, non-misleading, and substantiated by competent and reliable scientific evidence — typically clinical trials on healthy human subjects.

How does Nutra Comp's AI analysis work?

Nutra Comp searches PubMed for clinical trials relevant to your ingredient, filters for studies on healthy human subjects with oral administration, and uses AI to extract key data: p-values, effect sizes, study design, population details, and conclusions. It distinguishes between across-group and within-group significance and ranks evidence strength with a confidence scoring system.

What data sources does Nutra Comp use?

Nutra Comp primarily searches PubMed/MEDLINE, the world's largest biomedical literature database maintained by the U.S. National Library of Medicine. We focus on peer-reviewed clinical trials, randomised controlled trials (RCTs), meta-analyses, and systematic reviews.

Are the generated claims FDA-compliant?

Yes. Nutra Comp generates structure–function claims in strict accordance with the FDA Small Entity Compliance Guide. All claims avoid explicit and implicit disease references. However, we recommend having your legal/regulatory team review the final output before use, as Nutra Comp is a tool to assist — not replace — professional compliance review.

How long does a typical ingredient search take?

Most ingredient searches complete within 5–15 minutes, depending on the volume of clinical literature available. Compare this to the typical manual process which can take 40–100+ hours per ingredient when done by a human compliance expert.

Can I export my reports?

Absolutely. All clinical evidence reports, structure–function claims, and substantiation memos can be exported as professional PDF documents. These are formatted for easy sharing with your legal team, regulatory reviewers, or business partners.

What does 'ingredient searches per month' mean?

Each search is one ingredient analysis — for example, searching 'Ashwagandha' or 'Vitamin D3'. The search generates a complete evidence report, claims, and substantiation memo for that ingredient. Your monthly allowance resets on your billing date.

When will Nutra Comp be available?

We're currently in private beta. Join the waitlist to get early access and be notified when we launch. Early waitlist members will receive priority access and special launch pricing.

Zinc: Clinical Evidence & Substantiation Summary

Clinical Trials

Strongest Evidence

Immune Function

Typical Dosage

15–50 mg/day (elemental zinc)

Common Forms

Zinc picolinate

What Is Zinc?

Zinc is an essential trace mineral involved in immune function, protein synthesis, wound healing, DNA synthesis, and cell division. It is required for the activity of over 300 enzymes. Mild zinc deficiency is common, particularly in athletes, vegetarians, and older adults.

Mechanism of action: Zinc is a structural component of over 300 enzymes and ~2,000 transcription factors. It is essential for T-cell maturation and function, NF-κB signalling, and antioxidant defence (as a cofactor for superoxide dismutase). Zinc also maintains epithelial barrier integrity and supports normal testosterone metabolism.

Clinical Evidence Summary

Below are 5 key clinical studies on Zinc. Nutra Comp analyses 92+ studies in its full clinical evidence report.

Systematic review and meta-analysis2017PMID: 28515951

Zinc supplementation for the prevention and treatment of the common cold: a systematic review and meta-analysis

Population: 13 RCTs

Key finding: Zinc supplementation significantly reduced the duration of the common cold by 33% (p<0.001) when taken within 24 hours of symptom onset.

Systematic review2020PMID: 32432219

The Role of Zinc in Immune Function and Disorders: A Systematic Review

Population: 35 studies

Key finding: Zinc supplementation in deficient populations restored immune function markers (T-cell counts, NK cell activity) towards normal ranges.

Meta-analysis2019PMID: 30547890

Effects of zinc supplementation on diabetes

Population: 22 RCTs, 1,700 participants

Key finding: Zinc supplementation significantly reduced fasting blood glucose (WMD: -14.15 mg/dL, p<0.001) and HbA1c (WMD: -0.64%, p=0.002).

Systematic review2018PMID: 29307925

Zinc supplementation and testosterone levels: A systematic review

Population: 12 studies

Key finding: Zinc supplementation in zinc-deficient men significantly increased testosterone levels. Effects were minimal in zinc-replete individuals.

Systematic review2019PMID: 31305906

The impact of zinc supplementation on wound healing: A systematic review

Population: 18 studies

Key finding: Zinc supplementation improved wound healing outcomes in zinc-deficient patients, with significant reductions in healing time.

Evidence-Based Structure–Function Claims

Sample FDA-compliant structure–function claims generated by Nutra Comp, each linked to clinical evidence and scored for confidence.

“Supports healthy immune system function”

Category: Immune Function · Confidence: 9/10

“Supports skin health and normal wound healing”

Category: Skin Health · Confidence: 7/10

“Supports healthy testosterone levels already within the normal range”

Category: Hormonal Health · Confidence: 6/10

Get the full substantiation report for Zinc

Includes all 92+ clinical studies analysed, complete claims library, and a ready-to-file substantiation memo.

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Related Ingredients

Vitamin D3

127 studies · Bone Health & Calcium Metabolism

Magnesium

89 studies · Sleep & Relaxation

Vitamin C

168 studies · Immune Function

Key Terms

Substantiation Randomised Controlled Trial (RCT)P-Value

Frequently Asked Questions

Is zinc FDA approved?

Zinc is an essential mineral sold as a dietary supplement. It does not require FDA approval. The FDA has established a Daily Value of 11 mg for adults.

What are the most studied benefits of zinc?

The strongest evidence supports zinc for immune function (particularly common cold duration reduction), wound healing, and glucose metabolism. Some evidence exists for testosterone support in zinc-deficient populations.

What dosage of zinc is used in clinical studies?

Immune studies typically use 15–30 mg/day for prevention and 75+ mg/day (zinc lozenges) for acute cold treatment. For general health, 15–50 mg/day of elemental zinc is common. Long-term use above 40 mg/day may require copper co-supplementation.

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