People take a B Complex to support energy metabolism and the nervous system.** Each B vitamin in a Vitamin B Complex (Formerly known as Mega B-100) performs a unique role in maintaining proper metabolic functioning and is essential for well-being.** When taken together in a complex formula, the B Vitamins help to maintain the health of the nervous system, skin, and hair.** Taking a high-potency complex of B vitamins helps safeguard a sufficient daily intake. • Support for heart health** • Help with energy metabolism** • Supports a healthy nervous system** • Support for proper cell growth** • Best Seller! • A higher potency B-Complex • Rapid release for faster absorption • Easy to swallow capsules • Gluten free "B" your best with Vitamin World's high-quality vitamins! Contains 200 Capsules.