Key Takeaways

  • Fadogia Agrestis is a plant extract that may increase testosterone by boosting luteinizing hormone (LH) release, similar to hCG.
  • Rat studies suggest a safe human dosage for Fadogia Agrestis is around 300 mg per day to avoid potential toxicity.
  • Clomiphene (Clomid), a selective estrogen receptor modulator (SERM), is being misused for long-term hormone optimization.
  • Long-term use of clomiphene carries severe risks, including permanent visual changes and wide-ranging, undesirable effects across various body tissues.
  • Clinicians like Dr. Kyle Gillett strongly advise against clomiphene for sustained testosterone replacement or optimization due to its limited and temporary clinical utility.

The Allure of Quick Fixes and the Real Risks

As ambitious builders and founders, you're constantly looking for an edge – performance, focus, and physical health. Hormone optimization often comes up in these conversations. But not all tools are created equal, and some common "hacks" carry disproportionate risks. On the Huberman Lab podcast, Dr. Kyle Gillett pulled back the curtain on two popular compounds: Fadogia Agrestis and clomiphene (often sold as Clomid).

Fadogia Agrestis, a plant extract, has gained attention for its potential to naturally increase testosterone. Dr. Gillett explained its mechanism: “Fadogia uh agrostis is one of them... it will increase LH... it increases the release of luteinizing hormone from the pituitary. It's a hormone that binds to the Leydig cell, to the LH receptor, kind of like hCG does, and it will increase the release of testosterone.” Based on rat studies, Gillett suggested a safe human dosage for Fadogia Agrestis hovers around 300 mg per day. This dosage showed no toxic effects in animal models, offering a potential path for those exploring natural avenues under guidance.

Then came the warning. Andrew Huberman specifically asked Gillett about clomiphene, noting its growing popularity for hormone optimization. Many people, Huberman observed, are taking doses like “two 50 mg tablets a week.” Gillett's response was sharp and direct.

Why Clomiphene Isn't Your Long-Term Solution

Despite its perceived benefit in temporarily boosting testosterone, Dr. Gillett strongly cautioned against long-term clomiphene use. He made it clear that while clomiphene is a selective estrogen receptor modulator (SERM), its "selectivity" is far from benign or targeted enough for routine optimization. Gillett explained, "Clomid can inhibit receptors that are in the eye, and it can cause um visual changes, blurry vision, um especially at higher doses." These aren't minor, fleeting issues; visual disturbances from clomiphene can be permanent.

Beyond the eyes, clomiphene acts “in every other tissue of the body,” leading to a host of common, undesirable side effects. Gillett's core message was unequivocal: “The main rationale behind taking a SERM is as a very temporary measure that is not going to suppress pituitary or hypothalamic function if your testosterone is just so drastically low that it is unlikely to recover any what anyway.” In most cases, he stated, clomiphene is “not clinically useful and um SERM should not be prescribed very often, certainly not as long-term testosterone replacement um or testosterone optimization in most individuals.”

This isn't about avoiding medicine; it's about understanding what certain medications are actually for. Clomiphene's role in medicine is largely as a fertility aid or a temporary bridge for specific, severe hormonal imbalances, not a long-term testosterone booster for otherwise healthy, ambitious individuals in their 20s and 30s.

What to Do With This

Before chasing any new hormone optimization trend, demand clarity on mechanisms, side effects, and long-term data. Actively avoid long-term use of powerful drugs like clomiphene for optimization purposes, especially given the explicit warnings about serious, potentially irreversible side effects like vision damage. If you're exploring natural options like Fadogia Agrestis, prioritize a clinically verified safe dosage (like the 300 mg per day Gillett mentioned) and always consult a doctor who understands performance medicine before integrating anything new into your regimen. Your health isn't a hack to be optimized away; it's the foundation for everything else.