Optimum Nutrition On ZMA New EU Produced Capsules - Pack of 90

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Interestingly, research on older men who are often deficient in zinc and magnesium has found that supplemental sources of these minerals are able to increase testosterone levels and improve sleep quality. Research suggests that ZMA has significant anabolic benefits. A study performed at Western Washington University (Bellingham) had NCAA football players take ZMA or a placebo every night during an eight-week spring training program. They reported that the athletes taking the ZMA supplement experienced more than a 30-percent increase in testosterone levels, and about a 5-percent increase in levels of the insulin-like growth factor 1 (IGF-1).* Those taking a placebo had a 10-percent decrease in testosterone levels and a greater than 20-percent decrease in levels of IGF-1. And just as you’d predict, their testosterone levels dropped too. To demonstrate the effect working in reverse, the authors took another set of nine men in their sixties who were deemed “marginally deficient” in their zinc levels and put them on a zinc supplement for six months. We’re proud to be a certified Informed Manufacturer, a global quality assurance program operated by LGC for facilities that manufacture and supply sports nutrition products and ingredients, developed to minimise the risk of banned substance contamination.

ZMA UK: 5 of Our Favourite ZMA Supplements Best ZMA UK: 5 of Our Favourite ZMA Supplements

For example, zinc is essential for the development and function of many immune cells. In fact, supplementing with this mineral may reduce your risk of infections and aid wound healing ( 5, 17, 18). This product has 422mg of magnesium (that’s 100 percent of your RDV) and 500mg of l-theanine, both of which help promote more restful sleep. Plus, you get 3mg of melatonin, which is a natural hormone that signals to your body that it’s time to go to sleep, according to the Mayo Clinic. And customers definitely feel the effects before they hit the hay. “Not only do I wake up feeling great, I was surprised at how much this mix puts me down to sleep,” one five-star review says. “I can’t keep my eyes open more than 15 minutes after taking.” So, while ZMA might be potentially useful for short-term performance, it’s not a good long-term supplement for overall health. A side from that, the safety profile of this supplement looks very good. Recommended Dosage Key Ingredients:25mg vitamin B6, 422mg magnesium, 50mg zinc, 1000mg l-taurine, 500mg l-theanine, 500mg l-tryptophan, 3mg melatoninWe did consider supplements that put an additional twist on ZMA, as long as it had the traditional three ingredients. We were more open to this possibility with ZMA than we would be with other proven supplements, because the direct evidence for the efficacy of zinc is not as strong as the evidence for other supplements.

Optimum Nutrition, Zinc Magnesium Aspartate, 90 Capsules

As well as supplements, Zinc is also found naturally in some foods. Its important to remember zinc is not stored in the body and so needs to be consumed regularly ensure you get enough of it. Most manufacturers note that ZMA should be taken on an empty stomach before bed. Importantly, it should also be taken on a regular schedule, if possible. When to take ZMA?

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This experiment (while quite successful–see our eye vitamins article for more info) found a small increase in risk for urinary problems among the people taking the eye vitamin, which included zinc, just like a ZMA supplement. Meanwhile, magnesium and vitamin B6 have been shown to reduce bloating and water retention in women with premenstrual syndrome (PMS) ( 40, 41). There are some studies showing the benefits of magnesium supplement increasing athletic performance [ 1]. Other studies of ZMA supplements have shown no significant improvements for trained men [ 2]. Overall, there could be benefits to using ZMA supplements. From a science perspective though, there is simply not enough information available. More research is needed to prove whether there are any benefits.

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To raise your testosterone levels, opt for a ZMA supplement that’s got an adequate dose of both zinc and magnesium—two minerals with a proven connection to higher testosterone levels. MusclePharm Essentials Z-PM provides both in ample supply, plus includes the testosterone-elevating compounds copper and fenugreek extract. Optimum Nutrition makes a great ZMA supplement with the right ratio of zinc, magnesium, and vitamin B6, with no extraneous ingredients. The researchers took this one step further by demonstrating a causal relationship. In a subset of four young men, the authors measured testosterone levels before and after a brief period of zinc restriction. The men were fed a tightly controlled diet that was deficient in zinc, and as a result, their zinc levels in their body went down. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. ReferencesHowever, what is less clear is what proportion of high level athletes are deficient in magnesium or zinc, and what proportion of these athletes would actually benefit from a ZMA supplement. The magnesium in ZMA is linked to higher testosterone too. The case for a link between magnesium levels and testosterone levels comes from a study published in the International Journal of Andrology in 2011 ( 3 ).