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.

Saw Palmetto: Clinical Evidence & Substantiation Summary

Clinical Trials

Strongest Evidence

Prostate Health

Typical Dosage

320 mg/day (lipophilic extract)

Common Forms

Lipophilic berry extract

What Is Saw Palmetto?

Saw palmetto (Serenoa repens) is a palm plant extract widely used for prostate and urinary health support. It is one of the most studied botanicals for men's health, with evidence primarily supporting urinary symptom management.

Mechanism of action: Saw palmetto inhibits both isoforms of 5-alpha-reductase, reducing conversion of testosterone to dihydrotestosterone (DHT). It also exhibits anti-inflammatory effects via inhibition of COX-2 and 5-LOX pathways, and has anti-proliferative effects on prostatic tissue.

Clinical Evidence Summary

Below are 5 key clinical studies on Saw Palmetto. Nutra Comp analyses 34+ studies in its full clinical evidence report.

Cochrane systematic review2019PMID: 30547890

Saw palmetto for benign prostatic hyperplasia: updated Cochrane review

Population: 27 RCTs, 5,222 men

Key finding: Saw palmetto (320 mg lipophilic extract) showed modest improvements in urinary symptom scores (IPSS), though results were mixed across studies.

Meta-analysis2018PMID: 29610056

Saw palmetto and lower urinary tract symptoms: meta-analysis

Population: 12 RCTs

Key finding: Saw palmetto significantly improved peak urinary flow rate (WMD: 1.02 mL/s, p=0.03) and nocturia frequency.

Review2019PMID: 31433477

Saw palmetto extract and DHT: mechanism review

Population: Clinical and preclinical studies

Key finding: Saw palmetto inhibited 5-alpha-reductase activity in human prostate tissue and reduced serum DHT levels in clinical studies.

Systematic review2021PMID: 32540634

Safety of long-term saw palmetto supplementation

Population: 15 studies (1–3 years)

Key finding: Long-term saw palmetto use maintained a favourable safety profile with side effect rates comparable to placebo.

RCT2017PMID: 28829155

Combination phytotherapy for prostate health

Population: 225 men

Key finding: Saw palmetto combined with lycopene and selenium showed additive benefits for urinary symptoms vs. saw palmetto alone (p=0.03).

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 prostate function”

Category: Prostate Health · Confidence: 8/10

“Supports healthy urinary flow and frequency”

Category: Urinary Health · Confidence: 7/10

“Supports healthy DHT metabolism”

Category: Hormonal Health · Confidence: 7/10

Get the full substantiation report for Saw Palmetto

Includes all 34+ clinical studies analysed, complete claims library, and a ready-to-file substantiation memo.

Join Waitlist for Full Access

Related Ingredients

Zinc

92 studies · Immune Function

Selenium

64 studies · Thyroid Function

Key Terms

Randomised Controlled Trial (RCT)Standardised Extract Clinically Effective Dose

Frequently Asked Questions

Is saw palmetto FDA approved?

Saw palmetto is sold as a dietary supplement in the US and does not require FDA approval. In Europe, standardised extracts (e.g., Permixon) are approved as herbal medicines.

What are the most studied benefits?

The strongest evidence supports saw palmetto for prostate health, urinary symptom management, and DHT modulation.

What dosage is used?

The standard dose is 320 mg/day of a lipophilic (fat-soluble) extract, standardised to 85–95% fatty acids and sterols.

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