Fadogia agrestis is a shrubby plant native to Nigeria and other parts of West Africa, where traditional healers have long used the stem bark to support male sexual vitality and fertility. It gained significant Western attention after animal research suggested it could raise luteinizing hormone (LH) and testosterone levels. While it remains popular in men's health and sports nutrition circles, human clinical trial data is currently very limited.

The plant's saponins and alkaloids are thought to stimulate the body's own testosterone-producing pathways — specifically by encouraging the pituitary to release more luteinizing hormone (LH), which in turn signals the testes to produce more testosterone. This is different from directly supplying hormones — it nudges your own system to do the work. Some compounds may also have antioxidant effects that protect reproductive tissue.

Most commercial products come as capsules or tablets standardized to stem extract (commonly 400–600 mg per serving). Loose powder is also available for stacking with other supplements. There is no standardized extract potency used across the industry, which makes comparing products difficult. Quality and purity vary considerably between brands.

• Low libido (men)
• Low testosterone support
• Male sexual performance
• Erectile function
• Fatigue and low energy (men)
• Male infertility support
• Athletic performance and recovery
• Low motivation and drive

Fadogia agrestis is not found in any food sources — it is an isolated herbal extract from a West African shrub. To support the same goal of healthy testosterone levels, prioritize foods rich in zinc (oysters, beef, pumpkin seeds), vitamin D (fatty fish, egg yolks), and healthy fats (avocado, olive oil, nuts) since these nutrients are the direct building blocks of testosterone production. Reduce alcohol and ultra-processed foods, which are known to suppress testosterone over time. Cruciferous vegetables like broccoli and Brussels sprouts help manage estrogen balance, supporting a favorable testosterone-to-estrogen ratio.

• Potential testicular toxicity at high or prolonged doses (observed in animal studies)
• Liver stress or mild hepatotoxicity at elevated doses (animal data)
• Nausea or digestive discomfort
• Hormonal fluctuations if overused or misused
• Unknown long-term safety in humans — human clinical data is essentially absent

• Recommended daily: 425–600 mg of stem extract per day, typically in one dose. Most commercial products deliver 425 mg per capsule. Do not exceed 600 mg daily given the uncharacterized safety profile in humans.
• Best time of day: Morning or early afternoon with a meal. Some users take it pre-workout for the potential energy and hormonal priming effect.
• With or without food: Take with food to reduce the chance of stomach upset and to support absorption of fat-soluble phytochemicals.
• Time to effect: Libido effects may be noticed within 1–2 weeks. Any measurable hormonal shifts, if they occur, would likely take 4–8 weeks of consistent use.
• How long to take it: Cycle 8 weeks on, 4 weeks off. Given the lack of long-term human safety data and animal signals of cumulative toxicity, continuous uninterrupted use is not advisable. Get baseline and follow-up bloodwork (testosterone, LH, liver enzymes) if using regularly.