Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
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16.04.2011 |
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Vitamin D improves muscle quality
Most people on this planet have too little 25-hydroxy vitamin D in their blood, and as a result their muscle quality is below optimum. Radiologists at the University of Southern California in Los Angeles discovered that the muscles of young women contain up to 20 percent more fat if their vitamin D levels are too low.
Vitamin D
More recently research has shown that, even in sun-drenched countries like Turkey, Lebanon, the United Arab Emirates, India and Australia, 30-50 percent of the population is low on vitamin D. [N Engl J Med. 2007 Jul 19; 357(3): 266-81.] In Brazil the figure is 60 percent among young adults. [Ann Nutr Metab. 2009; 54(1): 15-21.]
Vitamin D & muscles
Animal studies have shown that rats put on a fattening diet develop more muscle and less fat when given extra vitamin D. In human studies, test subjects burn more calories after eating a breakfast that contains 0.5 g calcium and 9 mcg vitamin D. Elderly people who take vitamin D supplements are physically stronger, as are athletes who have high levels of vitamin D in their blood.
Study
Low levels of vitamin D in the blood were also associated with more subcutaneous fat [SF] and more abdominal [or visceral] fat [VF] Women with high levels of vitamin D also had more leg muscle, although the difference was not statistically significant.
Conclusion
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