What Is ZMA and Why You Should Take It.

ZMA is a combination of nutrients that are beneficial to the athlete.  Zinc deficiency is common among athletes and compromises athletic performance, immune function, and testosterone levels.  Physical activity also depletes magnesium levels, and a study with magnesium orotate in triathletes found it to significantly improve performance on all three events and reduce cortisol.  A number of possible benefits for athletes from vitamin B6 have been identified, including improved neural function, increased red blood cell count, improved energy utilization, and greater resistance to stress.  ZMA is usually taken before bed and has a reputation for improving sleep quality.