The Science: Some studies have implied that feeding maca to domestic cattle increases sperm production, but there is very little data about any sexual effect on humans. One very small randomized double-bind trial of men with erectile dysfunction found that men taking maca extract reported a small increase in their ability to get erections. But so did the control group. As with the fenugreek study, a similar study with a larger group of people is needed to see whether any differences between the controls and the maca-eaters are real.
Prescription drugs called “oral phosphodiesterase-5 (PDE5) inhibitors” are considered the “first-line non-invasive treatment” options for patients with ED. These include the drugs that go by brand names: Sildenafil, Vardenafil or Tadalafil. They work by helping the smooth muscle cells lining the blood vessels that supply the penis with blood to work properly. This allows a man to maintain an erection more easily.
In diabetes, vasoconstrictors and vasoactive factors are increased in addition to structural changes and attenuation of relaxation responses in the corpus cavernosum. A shifting of the balance of vasoactive factors occurs such that relaxation factors (eg, nitric oxide [NO]) are inhibited and contractile factors are induced in microvascular disease. With epidemiological predictions suggesting that the incidence of diabetes mellitus will increase to 300 million by 2025, management of diabetes-induced ED is increasingly important.
A variety of personal habits and lifestyle choices have been linked to ED. In some ways, this is a good thing, since habits can be broken and choices reconsidered. What's more, many of the lifestyle factors that contribute to sexual problems are ones that affect overall health and well-being, both physical and mental. Addressing these factors, therefore, can have benefits beyond improving erectile dysfunction.

From the conservation point of view, medicinal plants usage will continue to grow in popularity as people seek ways to support health naturally and gently31. So far, over 72% of these medicinal plants used in ED conditions were harvested from the wild. Yet, there is increasing trend in usage of traditional medicine in developed countries30. The dramatic increase in herbal remedies usage will continue to rise since WHO has taken on monitoring of all unconventional medicine according to the traditional medicine strategic plan of 2002 to 200533. Most medicinal plants have proved successful sources or have acted as leads of effective ingredients that today's drug companies often look first to traditional places such as the rain forests, forest animals and traditional healers for clues to guide their drug development efforts. Furthermore, the harvesting of medicinal plants from the wild places such as the forest reserves, national parks in QEBR is a point of concern whereby no viable mechanisms have been put in place to propagate them. The plant parts harvested especially those of wild medicines such as roots and stem, pose threat to the future survival of natural reservoirs if domestication strategies are not adopted in the near future.


Just because a product claims to be natural doesn't mean it's safe. Many herbal remedies and dietary supplements can cause side effects and dangerous interactions when taken with certain medications. Talk to your doctor before you try an alternative treatment for erectile dysfunction — especially if you're taking medications or you have a chronic health problem such as heart disease or diabetes.

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