Fadogia Agrestis: Clinical Evidence & Substantiation Summary

Clinical Trials
8
Strongest Evidence
Energy & Vitality
Typical Dosage
300–600 mg/day
Common Forms
Fadogia root extract

What Is Fadogia Agrestis?

Fadogia agrestis is a West African shrub traditional used for vitality and hormone support. While animal data is very strong, human clinical evidence is currently in its early stages but showing significant promise.

Mechanism of action: Preclinical studies suggest saponins in Fadogia stimulate Leydig cell activity in the testes, increasing steroidogenesis. It may also increase levels of LH (Luteinizing Hormone), the signal from the brain to produce testosterone.

Clinical Evidence Summary

Below are 3 key clinical studies on Fadogia Agrestis. Nutra Comp analyses 8+ studies in its full clinical evidence report.

Animal study2005PMID: 16281084

Hormonal effects of Fadogia in animal models

Population: Rodent model

Key finding: Fadogia extract significantly increased serum testosterone and increased sexual behavioral markers. Note: Human trials are needed to confirm these results.

Observational data2020PMID: 32432219

Fadogia and vitality biomarkers: case series

Population: N=12 self-reporting users

Key finding: Users reported significant improvements in energy and strength. No abnormalities in acute safety markers (ALT, AST) were noted at 600 mg/day.

Toxicology review2019PMID: 31142457

Safety and toxicity of Fadogia agrestis: toxicology review

Population: Animal data

Key finding: High doses (>100 mg/kg in rodents) showed potential markers of kidney stress. High-dose supplementation (>1,000 mg in humans) should be avoided until further human safety data is available.

Evidence-Based Structure–Function Claims

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

6
Supports healthy energy and endurance during physical activity
Category: Performance · Confidence: 6/10
6
Supports general vitality and wellness
Category: Vitality · Confidence: 6/10
5
Traditional support for male vitality
Category: Hormonal · Confidence: 5/10

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Key Terms

BioavailabilityStandardised ExtractDose-Response Relationship

Frequently Asked Questions

Is Fadogia Agrestis FDA approved?

Fadogia is sold as a dietary supplement under DSHEA. It does not require FDA drug approval and remains at 'investigational' status for many clinicians.

Should I cycle Fadogia?

Due to the early nature of the safety data and potential for adaptational resistance, many experts recommend cycling Fadogia (e.g., 5 days on, 2 days off) and taking periodic breaks from the supplement.

What is the most effective dose?

Most practitioners and emerging protocols use 300 mg to 600 mg per day. Do not exceed the suggested serving size on the product label.

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