B vitamins are vital for releasing energy in the body as they aid the metabolism of carbohydrates, fats, and proteins.
Although being deficient in one or several B vitamins can affect how well a person can exercise, there is little evidence to suggest that unnecessarily taking supplements will improve performance.
As a result, it is best to see a doctor to undergo testing before choosing to take a B vitamin supplement.
Female athletes may be at risk for deficiencies in B vitamins, which include:
Having a vitamin B-12 deficiency can make people feel weak and tired. As vitamin B-12 primarily occurs in animal products, vegans and vegetarians are more likely to develop a deficiency in this vitamin.
Source Article from https://www.medicalnewstoday.com/articles/327166.php