The B vitamins thiamin, riboflavin, and vitamin B6 are needed for the body's energy production and vitamin B12 and folate are necessary for the production and repair of cells. Now a review reports that a diet deficient in the B vitamins can negatively affect athletic performance as well as muscle growth and repair. The study authors suggest that athletes with poor diets should take a multivitamin/mineral supplement.
The review, published in the International Journal of Sport Nutrition and Exercise Metabolism, examined the dietary intake, nutritional status and performance of athletes and active individuals. Researchers at Oregon State University's Colleges of Agricultural and Health and Human Sciences also reviewed the B-vitamins and their function in energy metabolism and cell repair.
Studies suggest that high-intensity exercise increases stress on the body's energy metabolism and decreases essential nutrients for tissue repair. This increases the requirement for B vitamins. Athletes and active individuals with poor diets are especially vulnerable to B vitamin deficiencies. This can result in diminished performance and long-term health problems.
The study authors believe that the U.S. recommended daily allowance for B vitamins may be inadequate for athletes and active individuals. "Athletes who have poor diets, especially those restricting energy intakes or eliminating food groups from the diet, should consider supplementing with a multivitamin/mineral supplement," the study authors conclude.
REFERENCES:
1. Woolf K and Manore M. B-Vitamins and Exercise: Does Exercise Alter Requirements? IJSNEM 2006 Oct;16(5):155-156.
Posted by Elaine Gavalas on December 26, 2006 03:49 PM
