Vitamin B
Background:
All of the B vitamins should be taken together as a "complex" because all of the B vitamins work together, each working to convert energy from stored fats and proteins in cells. The benefits of B vitamin supplementation include healthier heart and cardio systems, increased energy, and improved digestion.
Persons who have high levels of mental and physical stress can benefit most from Vitamin B supplementation since it helps to reduce fatigue and depression.