which supplements influence testosterone

Several supplements are discussed as influencing testosterone, though the evidence and mechanisms differ:

• Vitamin D3, zinc, and magnesium: Correcting a deficiency may support normal testosterone production; these are described as foundational support rather than reliably pushing levels above normal. 1 2
• Tongkat ali (Longjack): Reported to increase total and free testosterone; it may also lower SHBG when SHBG is high and slightly increase DHEA. Effects appear variable, and the transcript notes possible alertness or sleep effects. 3 4 5
• Boron: May reduce SHBG and increase the amount of free testosterone available; one physician gives 5–12 mg/day as a commonly used range, while another segment describes the evidence more generally. 6 7
• Creatine: The discussion says it may raise DHT, a testosterone-derived androgen, rather than establishing a straightforward increase in testosterone itself; DHT-related hair loss may be a concern for susceptible people. 8
• Fadogia agrestis: May increase luteinizing hormone, which can stimulate testosterone release, but safety evidence is limited and the transcript cautions that the side-effect profile is unclear. 9
• Ashwagandha and shilajit: Ashwagandha may raise testosterone indirectly as it lowers cortisol; shilajit is described as supporting multiple hormones and may indirectly increase testosterone. 10
• Tribulus terrestris: Some evidence suggests it can raise free or bioavailable testosterone in a particular study population, but whether it meaningfully raises testosterone more broadly is uncertain. 11

The discussion emphasizes that effects vary, and recommends monitoring hormone bloodwork when modifying hormones or using supplements. 12