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.

Calcium: Clinical Evidence & Substantiation Summary

Clinical Trials

134

Strongest Evidence

Bone Health

Typical Dosage

500–1,200 mg/day (elemental calcium)

Common Forms

Calcium carbonate

What Is Calcium?

Calcium is the most abundant mineral in the body, with 99% found in bones and teeth. It is essential for skeletal health, muscle contraction, nerve signalling, and blood clotting. Adequate intake is critical for preventing age-related bone loss.

Mechanism of action: Calcium provides structural rigidity to the skeletal system as hydroxyapatite crystals. It serves as a critical second messenger in intracellular signalling, enabling muscle contraction, neurotransmitter release, and enzyme activation. Parathyroid hormone, calcitonin, and vitamin D regulate calcium homeostasis.

Clinical Evidence Summary

Below are 5 key clinical studies on Calcium. Nutra Comp analyses 134+ studies in its full clinical evidence report.

Meta-analysis2010PMID: 21118827

Calcium and vitamin D for fracture prevention: meta-analysis

Population: 29 RCTs, 63,897 participants

Key finding: Calcium + vitamin D significantly reduced fracture risk by 15% (RR 0.85, CI 0.73–0.98) when compliance was adequate.

Meta-analysis2017PMID: 28768407

Calcium supplementation and bone mineral density

Population: 18 RCTs

Key finding: Calcium supplementation significantly slowed BMD loss at the lumbar spine (+0.9% per year, p<0.001) and femoral neck.

Systematic review2018PMID: 30163680

Calcium citrate vs calcium carbonate: absorption comparison

Population: 6 RCTs

Key finding: Calcium citrate was 22–27% more bioavailable than carbonate, with the advantage greatest when taken without food.

Meta-analysis2017PMID: 29099763

Calcium and cardiovascular risk: re-analysis

Population: 26 RCTs

Key finding: Calcium supplementation within recommended dose ranges (≤1,000 mg/day) did not significantly increase cardiovascular event risk when co-administered with vitamin D.

Meta-analysis2019PMID: 31433477

Calcium and PMS symptom severity

Population: 8 RCTs, 497 women

Key finding: Calcium (1,000–1,200 mg/day) significantly reduced overall PMS symptom scores (p<0.001), including mood-related symptoms.

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 bones and teeth”

Category: Bone Health · Confidence: 10/10

“Supports healthy muscle function”

Category: Muscle · Confidence: 8/10

“Supports healthy nerve signalling”

Category: Nervous System · Confidence: 8/10

Get the full substantiation report for Calcium

Includes all 134+ 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 K2

32 studies · Bone Health

Key Terms

Qualified Health Claim Bioavailability Daily Value (DV)

Frequently Asked Questions

Is calcium FDA approved?

Calcium is an essential mineral. The FDA has authorised a health claim linking calcium and vitamin D intake to reduced osteoporosis risk. The Daily Value is 1,300 mg.

What are the most studied benefits?

Bone health and fracture prevention (especially with vitamin D co-supplementation), PMS symptom reduction, and muscle/nerve function.

What dosage is used?

500–600 mg per dose (split doses for better absorption), not exceeding 1,000–1,200 mg/day total from supplements. Calcium citrate is preferred for older adults and those on acid-reducing medications.

Stop Spending Weeks on Substantiation

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