Bently
MuscleChemistry Registered Member
Hard training affects the status of the group of vitamins, collectively known as the B-complex family. These vitamins are important for the proper metabolism of protein, carbohydrates, and fats; as well as for energy production. Research shows that if you’re deficient in B-vitamins, your physical performance will suffer. So for optimum training and performance, you need a good supply of these nutrients, both from food and supplements.