The active component in most of these pills is often Yohimbine, which comes from the African Yohimbe tree. Yohimbe has been the subject of several studies with laboratory animals. It is an alkaloid which is claimed to be both an aphrodisiac and a general sexual tonic boosting sex drive, potency and stamina. In rats, Yohimbe was found to boost the sex drive, hence its reputation for being an aphrodisiac. In humans, Yohimbe can raise blood pressure and increase the heart rate. It can also assist with blood circulation. Because of its effect on blood circulation, it is likely that Yohimbe could also have an effect on the erectile function of the penis, resulting in harder, and therefore larger, erections. Whether or not preparations such as these can stimulate actual penis growth is not known. Because these formulations can boost blood flow to the penis, an increasing number of men are using pills in combination with a natural penis enlargement program. Men who have tried combining the two say the increased blood flow to the penis benefits the penile massage techniques and that size gains are achieved more quickly. Men should be aware that Yohimbe formulations are prohibited in a number of countries outside the United States. Additionally, the FDA is investigating Yohimbe as it can have unwelcome side effects.

Leaving penis enlargement pills aside, researchers say that the best way to improve the size and performance of the penis is to maintain a healthy diet and watch what is taken into the body. One of the worst things men can do is smoke. Smoking can actually shrink the penis and its effects on health in general are well documented. Excess intake of alcohol can also have a detrimental effect. Apart from impotence (brewers droop), alcohol can also cause a general weight increase. Weight can have a very real effect on the size of the penis as excess body fat can cause more of the penis to remain hidden “inside” the body. In very obese men, penis size is often reduced dramatically.

Maintaining a trim physique - and a fit penis - can be achieved through a sensible diet and dietary intake should also include the following supplements to ensure a healthy penis and reproductive system.