Home Ingredients Fadogia Agrestis
Men's Health

Fadogia Agrestis

Fadogia agrestis
Evidence Level
Preliminary
2 Clinical Trials
4 Documented Benefits
1/5 Evidence Score

Fadogia agrestis is a Nigerian shrub used in traditional African medicine for sexual function. Popularized in Western supplement market by Andrew Huberman's podcast as testosterone-supportive (often paired with tongkat ali). Critical evidence gap: virtually all human evidence is from non-rigorous sources; primary research is animal-based showing increased testosterone in male rats. Limited safety data. Animal toxicity studies show testicular damage at high doses — significant safety concern for chronic supplementation.

Studied Dose 300-1,200 mg/day commonly used in supplements; based on animal extrapolation rather than human dose-finding studies; cycling typically recommended due to limited long-term safety data
Active Compound Saponins, alkaloids, anthraquinones (specific actives not well-characterized)

Benefits

Animal Testosterone Increase (Limited Human Translation)

study in male albino rats showed fadogia extract significantly increased serum testosterone after 5-day administration. Generated significant interest in human testosterone supplementation. Critical: animal-to-human extrapolation is uncertain; no rigorous human RCTs replicate this finding; popular Huberman podcast positioning exceeds evidence.

Supported by Trial 1

Traditional Aphrodisiac (Nigerian Folk Medicine)

Used in Nigerian and West African traditional medicine for sexual function support. Anecdotal effects on libido and erection quality. Modern evidence weak.

Supported by Trial 1

Traditional Antimalarial / Anti-Inflammatory

Used in Nigerian traditional medicine for malaria, fever, and inflammation. Modern evidence weak.

Often Stacked with Tongkat Ali (Synergy Theoretical)

Popularized as fadogia + tongkat ali combination — both for testosterone support. Synergistic mechanism theoretical; combined product evidence essentially absent.

Supported by Trial 1, Trial 2

Mechanism of action

1

Animal Testosterone Mechanism (Unclear)

In rats, fadogia increases testicular weight, sperm count, and serum testosterone — mechanism not fully characterized. May involve LH stimulation or direct testicular effects.

2

Saponin Activity

Steroidal saponins present in extract; specific effects on steroidogenesis unclear.

3

Anthraquinone Content (Theoretical Concern)

Anthraquinones (also found in laxatives like senna) raise potential concern for chronic GI and possibly liver effects with prolonged use.

4

Testicular Toxicity at High Doses (Animal)

Paradoxical: while modest doses increase testosterone in rats, high or prolonged doses cause testicular histological damage (Yakubu 2007). U-shaped dose-response with toxicity at higher doses warrants significant caution.

Clinical trials

1
Fadogia for Testosterone in Rats

Animal study of fadogia agrestis stem extract in male albino rats. Outcomes: serum testosterone, mating behavior.

Male albino rats.

Increased serum testosterone, mating behavior, and sexual organ weights at modest doses. Generated supplement industry interest. Critical: animal-only study; no rigorous human translation.

2
Fadogia Testicular Toxicity at High Doses

Animal toxicology study of fadogia agrestis at higher and prolonged doses.

Male albino rats.

Testicular histological damage at higher/prolonged doses despite testosterone increase at modest doses. Important safety signal warranting caution in human supplementation.

Side effects and drug interactions

Common Potential side effects

Potential testicular toxicity at high or chronic doses — based on animal evidence; human translation unclear but warrants caution.
Limited safety data overall — minimal human pharmacovigilance.
GI distress.
Headache.
Theoretical hepatotoxicity (anthraquinone concerns; case reports lacking but prudent caution).
Allergic reactions theoretically possible.
May affect prolactin / hormone levels (mechanism unclear).

Important Drug interactions

Hormone-sensitive conditions — uncertain effects; avoid without oncologist consultation.
Testosterone replacement / TRT — additive effects unclear; consult prescriber.
Anticoagulants — theoretical interactions.
Other testosterone-supportive supplements — theoretical additive effects but evidence limited.
Hepatotoxic drugs — theoretical additive concerns.

More Men's Health Ingredients

Men's Health
Folate
Folate, also known as vitamin B9, is a water-soluble vitamin commonly supplemented as foli…
Men's Health
Pygeum (African Plum / Prunus Africana)
Pygeum africanum (African plum) bark extract is one of the most-studied herbal interventio…
Men's Health
Testofen® (Fenugreek for Male Vitality)
Testofen® is a standardized fenugreek seed extract developed by Saanroo (formerly Gencor P…
Men's Health
Tesnor® (Pomegranate + Cocoa Testosterone Support — Saanroo)
Tesnor® is Saanroo's (formerly Gencor) patented testosterone support ingredient — a 4:1 bl…

Explore Other Ingredients

Metabolic Health
Fenugreek
Fenugreek is an aromatic seed used both as a culinary spice and a supplement, best known f…
Immune Support
Zinc
Zinc, an essential trace mineral, is commonly supplemented in forms like zinc gluconate, a…
Cardiovascular
Omega-3 Fatty Acids
Omega-3 fatty acids, primarily eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), an…

Related articles from our blog

📝 Article
Tongkat Ali & Fadogia Agrestis: What the Science Says About the Testosterone Stack
Search interest in tongkat ali and fadogia agrestis has exploded, driven largely by podcasts and social media where the…

Frequently asked questions about Fadogia Agrestis

What is Fadogia agrestis used for?

Fadogia agrestis is an African shrub marketed as a testosterone and libido booster, popular in some men's vitality supplements. Its traditional use is as an aphrodisiac.

Does Fadogia agrestis boost testosterone?

Its reputation comes mainly from animal studies suggesting raised testosterone; there is very little human research to confirm benefits or define safe use. Claims should be viewed as unproven in people.

How much Fadogia agrestis should I take?

Human dosing is not established, and product quality varies widely. Given the lack of human safety data, caution is essential and it should be approached carefully.

Is Fadogia agrestis safe?

Human safety data is very limited, and animal studies have raised concerns about potential organ (including testicular) toxicity at higher doses with prolonged use. Because of this uncertainty, caution is warranted; consult a healthcare professional before use.

What is Fadogia Agrestis?

Fadogia agrestis is a Nigerian shrub used in traditional African medicine for sexual function. Popularized in Western supplement market by Andrew Huberman's podcast as testosterone-supportive (often paired with tongkat ali).

What is the recommended dosage of Fadogia Agrestis?

The clinically studied dose is 300-1,200 mg/day commonly used in supplements; based on animal extrapolation rather than human dose-finding studies; cycling typically recommended due to limited long-term safety data Always follow the product label and check with a healthcare provider for personal advice.

Is Fadogia Agrestis safe, and does it have side effects?

For most healthy adults, Fadogia Agrestis is well tolerated at studied doses. Reported effects can include: Potential testicular toxicity at high or chronic doses — based on animal evidence; human translation unclear but warrants caution. Limited safety data overall — minimal human pharmacovigilance. It may also interact with some medications. Fadogia Agrestis is not right for everyone, so check with a healthcare provider first if you are pregnant or breastfeeding, have a medical condition, or take prescription medication.

Does Fadogia Agrestis interact with any medications?

Possible interactions include: Hormone-sensitive conditions — uncertain effects; avoid without oncologist consultation. Testosterone replacement / TRT — additive effects unclear; consult prescriber. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for Fadogia Agrestis?

NutraSmarts rates the evidence for Fadogia Agrestis as Preliminary (1 out of 5). It is backed by 2 clinical trials and 3 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(3 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Yakubu MT, Akanji MA, Oladiji AT Aphrodisiac potentials of the aqueous extract of Fadogia agrestis (Schweinf. Ex Hiern) stem in male albino rats Asian Journal of Andrology. 2005;7(4):399-404. doi:10.1111/j.1745-7262.2005.00052.x.PubMedUsed to support: Animal study (male rats) showing dose-dependent increases in mount frequency, intromission frequency, and serum testosterone concentrations following Fadogia agrestis extract. Primary evidence base for 'Animal Testosterone Increase' and 'Traditional Aphrodisiac' benefit claims. Evidence is animal-only; no human RCT data.
  2. Yakubu MT, Oladiji AT, Akanji MA Mode of cellular toxicity of aqueous extract of Fadogia agrestis (Schweinf. Ex Hiern) stem in male rat liver and kidney Human & Experimental Toxicology. 2009;28(8):469-78. doi:10.1177/0960327109106973.PubMedUsed to support: Rat toxicology study documenting hepatorenal oxidative stress (elevated malondialdehyde, enzyme disruption) after 28-day Fadogia agrestis administration. Essential safety context for YMYL use: animal evidence indicates hepatotoxic and nephrotoxic potential at higher doses, with no human safety data available.
  3. Sanon S, Ollivier E, Azas N, Mahiou V, Gasquet M, Ouattara CT, Nebie I, Traore AS, Esposito F, Balansard G, Timon-David P, Fumoux F Ethnobotanical survey and in vitro antiplasmodial activity of plants used in traditional medicine in Burkina Faso Journal of Ethnopharmacology. 2003;86(2-3):143-147. doi:10.1016/s0378-8741(02)00381-1.PubMedUsed to support: Ethnobotanical survey identifying Fadogia agrestis among plants used in traditional medicine in West Africa, with confirmed in vitro antiplasmodial activity (IC50 4–10 µg/mL). Supports the 'Traditional Antimalarial/Anti-Inflammatory' traditional use claim.