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.

Probiotics: Clinical Evidence & Substantiation Summary

Clinical Trials

156

Strongest Evidence

Digestive Health

Typical Dosage

1–100 billion CFU/day (strain-dependent)

Common Forms

Lactobacillus strains (L. rhamnosus, L. acidophilus)

What Is Probiotics?

Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. They are among the fastest-growing supplement categories, with clinical evidence supporting benefits for digestive health, immune function, and mental well-being via the gut-brain axis.

Mechanism of action: Probiotics colonise the gut and interact with the intestinal epithelium and immune system. They compete with pathogenic bacteria for adhesion sites, produce antimicrobial substances (bacteriocins, lactic acid), strengthen the intestinal barrier, and modulate immune responses through cytokine signalling. Some strains influence the gut-brain axis via vagal nerve signalling and neurotransmitter production.

Clinical Evidence Summary

Below are 5 key clinical studies on Probiotics. Nutra Comp analyses 156+ studies in its full clinical evidence report.

Systematic review and meta-analysis2019PMID: 31433477

Probiotics for the management of functional gastrointestinal disorders: a systematic review

Population: 53 RCTs

Key finding: Probiotics significantly improved global symptoms of IBS (RR 0.79, 95% CI 0.70–0.89) with benefits varying by strain.

Meta-analysis2018PMID: 29473879

Probiotics for the Prevention of Antibiotic-Associated Diarrhea: A Systematic Review and Meta-Analysis

Population: 31 RCTs, 8,672 participants

Key finding: Probiotics reduced the risk of antibiotic-associated diarrhea by 37% (RR 0.63, 95% CI 0.54–0.73).

Meta-analysis2018PMID: 30163680

Efficacy of probiotics on immunity and clinical outcomes in respiratory tract infections

Population: 23 RCTs

Key finding: Probiotic supplementation significantly reduced the incidence and duration of upper respiratory tract infections (p<0.01).

Meta-analysis2019PMID: 31496068

Probiotics as Adjunctive Treatment for Depression: A Meta-Analysis

Population: 7 RCTs, 399 participants

Key finding: Probiotic supplementation had a significant overall effect on depression symptoms compared to placebo (SMD -0.31, p=0.01).

Systematic review2020PMID: 32214289

A systematic review of probiotics and their impact on the gut microbiota in healthy adults

Population: 45 RCTs

Key finding: Probiotic supplementation transiently altered gut microbiota composition and diversity, with effects largely strain-specific and reversible upon cessation.

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 digestive health and regularity”

Category: Digestive Health · Confidence: 9/10

“Supports a healthy balance of gut microflora”

Category: Gut Health · Confidence: 8/10

“Supports healthy immune system function”

Category: Immune Function · Confidence: 7/10

Get the full substantiation report for Probiotics

Includes all 156+ clinical studies analysed, complete claims library, and a ready-to-file substantiation memo.

Join Waitlist for Full Access

Related Ingredients

Vitamin D3

127 studies · Bone Health & Calcium Metabolism

Zinc

92 studies · Immune Function

Key Terms

Structure–Function Claim Substantiation Randomised Controlled Trial (RCT)

Frequently Asked Questions

Are probiotics FDA approved?

Probiotics sold as dietary supplements do not require FDA approval. However, any health claims must comply with DSHEA regulations and be limited to structure–function claims. Some probiotic strains are used in FDA-approved medical foods or drugs, but these are distinct from supplement products.

What are the most studied benefits of probiotics?

The strongest clinical evidence supports probiotics for digestive health (IBS symptom reduction, antibiotic-associated diarrhea prevention), immune function (reducing respiratory infection incidence), and emerging evidence for mood and mental well-being via the gut-brain axis.

What dosage of probiotics is used in clinical studies?

Dosage varies widely by strain and indication, typically ranging from 1 billion to 100 billion CFU per day. Efficacy is strain-specific — a dose that works for one strain may not apply to another.

Stop Spending Weeks on Substantiation

Nutra Comp generates full clinical evidence reports, FDA-compliant structure–function claims, and substantiation memos in minutes — not months.

Join the Waitlist