ZMA (Zinc and Magnesium combine) is a unique combination of vitamins and minerals that impact positively on athletic performance. It is available in supplement form, and it is readily absorbed by the system. ZMA is the only non steroidal, all natural dietary supplement clinically proven to increase free testosterone levels and strength in training athletes. It is a supplement designed to give extra strength and muscle size gains to the user along with greater endurance, faster recovery and healing.
ZMA can be used by all athletes wanting to gain lean muscle size and strength, including bodybuilders, rugby players, sprinters and other strength athletes. ZMA is also used widely by endurance athletes, such as runners, cyclists and triathletes, as it helps to prevent the drop in testosterone levels linked with high volumes of training. The minerals zinc and magnesium have a number of important functions in the body. Zinc has been strongly linked to the production of testosterone, a hormone that plays a vital role in regulating muscle growth. In addition to its effect on testosterone, zinc has also been shown to increase levels of growth hormone and IGF-1. Both are essential for increasing muscle size. Magnesium is also an essential mineral, involved in more than 300 chemical reactions in the body (including the oxidation or ‘burning' of fat). Athletic studies show that many athletes have a zinc deficiency, which can be corrected by taking ZMA.
References:
http://www.bodyactive-online.co.uk/supplements/ingredients/ZMA.asp
http://www.nutriline.org/article/129
http://health.articlesarchive.net/zma-fuel.html
