Is fadogia agrestis good for men to boost testosterone?

Yes, it may raise testosterone, but the evidence and safety concerns warrant caution.

• Possible mechanism: Fadogia agrestis may increase luteinizing hormone (LH) release and sensitivity of LH receptors. LH stimulates cells in the testes to produce testosterone. 1
• Safety concern: Testicular-cell toxicity has been observed in rat studies at high doses; the human safety picture, particularly for long-term use, is not settled. 2
• Cycle and monitor: One physician-recommended approach is three weeks on and one week off. Get blood tests before starting and again during use to assess effects and possible adverse changes. 3; 4