B-Complex refers to a group of eight essential vitamins that play a crucial role in maintaining overall health. These vitamins include B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate), and B12 (cobalamin). Each vitamin has unique functions, such as energy production, red blood cell formation, and supporting the nervous system. These vitamins are often found in a variety of foods, including whole grains, meat, eggs, dairy products, legumes, and leafy greens. A balanced diet typically provides sufficient amounts of B-Complex vitamins, but supplements are available for those who may need additional support, such as pregnant women or individuals with certain health conditions.