The B vitamin family plays a vital role in energy production, metabolism, brain function, and overall cellular health. It includes essential nutrients like B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin). Despite their importance, B vitamins are water-solub