Fenugreek
The extract of this unique plant has many beneficial effects, including such important things as increasing libido and the level of male sex hormones, and reducing the secretion of the pancreatic hormone. It also improves appetite. This is an excellent advantage for athletes who want to develop muscles but are not genetically predisposed to rapid muscle mass growth. In Chinese medicine, fenugreek is used to treat impotence and other sexual disorders in men.
Always take it with food. The recommended dosage is 1.5 grams per day, divided into two or three parts.
In general, fenugreek extract offers the following advantages: 
- libido stimulation (in the context of increased sexual activity and self-confidence)
- improving the quality of orgasm (getting more vivid and sharp sensations during sexual intercourse)
- reducing total cholesterol and triglycerides
- stabilization of blood sugar levels
- general strengthening effect on the body (immunomodulatory effect)
- antioxidant and anti-inflammatory effects (theoretically justified and based on the composition of the extract)
Fenugreek extract is widely used by professional athletes. Although the supplement doesn't actually affect the level of the main male sex hormone, as previously believed, its general strengthening effect, as well as increasing appetite, are of particular importance for people who are striving to gain quality muscle mass.
The effect of increasing libido outside the context of hormone stimulation is important for everyone. The thing is it allows you to make your sex life richer and more diverse. Other effects of fenugreek are beneficial, but one needs to remember that it's not a drug, so it cannot be used for the treatment or prevention of any diseases.