Bvitamin

Bvitamin, often referred to as the vitamin B complex, is not a single compound but a group of eight water-soluble vitamins that are essential micronutrients for humans. They primarily function as coenzymes or precursors that support energy metabolism, DNA synthesis, and the maintenance of nerve, blood, and skin health. The eight B vitamins are B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folate/folic acid), and B12 (cobalamin).

Because these vitamins are water-soluble, the body stores limited amounts and most excess is excreted in urine, making regular dietary intake important. Deficiency signs and health effects vary by vitamin: thiamine deficiency can cause beriberi, riboflavin deficiency leads to ariboflavinosis, niacin deficiency causes pellagra, folate and B12 deficiencies can produce megaloblastic anemia and, in the case of B12, neurological symptoms; vitamin B6 deficiency can cause anemia and neuropathy; biotin deficiency is rare but may affect skin, hair, and nerves. Pantothenic acid deficiency is uncommon.

Dietary sources are diverse and include meat, fish, eggs, dairy products, legumes, whole grains, leafy greens, and fortified foods. Recommended intakes differ by age, sex, and life stage, with higher needs during pregnancy and lactation. In general, unity across the B vitamins is that a balanced diet usually prevents deficiency; excessive intake from supplements can cause adverse effects for certain B vitamins, so supplementation should follow dietary gaps or medical advice.