Effects of garlic on testosterone

There is no clear conclusion yet on the effect of garlic on testosterone levels, and existing studies show bidirectional results. Garlic may indirectly affect testosterone secretion by regulating cholesterol metabolism and antioxidant effects, but excessive intake may also inhibit related enzyme activities.

Sulfur-containing compounds in garlic, such as allicin, may support testosterone synthesis by improving blood circulation in the testicles by improving endothelial function. Animal experiments show that garlic extract can increase serum testosterone concentration in castrated rats, and its mechanism may be related to reducing oxidative stress damage. Some groups of people have observed that testosterone levels in men who consume a moderate amount of raw garlic every day increase slightly, but the range of changes is usually maintained within the range of physiological fluctuations.

Long-term excessive consumption of garlic may interfere with cholesterol metabolism pathways. Testosterone synthesis requires cholesterol as a raw material. When garlic extract exceeds a certain dose, it may inhibit the activity of steroid hormone synthase. Some people with sensitive constitutions may experience temporary fluctuations in hormone levels, which will gradually return after cessation of intake.

It is recommended that adult men consume 2-3 cloves of fresh garlic every day and avoid large intakes on an empty stomach. People who are taking anticoagulant drugs or have thyroid dysfunction should consult their doctor. The comprehensive effect of maintaining regular exercise and a balanced diet on maintaining testosterone levels is much higher than a single food supplement. If necessary, reproductive hormone testing can be performed to evaluate the actual level.