Weil Nutritional Supplements

What is Vitamin B Complex?
The B Complex contains a full spectrum of B vitamins, including thiamine, B12, riboflavin and niacin, which are all needed for key metabolic processes.

What do B vitamins do?
B vitamins help support adrenal function and help calm and maintain a healthy nervous system. Thiamine acts as a cofactor for the metabolism of glucose and may have a role in nerve transmission. Vitamin B12 is necessary for DNA synthesis and affects the development of red blood cells, normal myelination (covering) of nerve cells, and the production of neurotransmitters.

Like other vitamin B complex components, both riboflavin and niacin act as cofactors for enzymes involved in metabolism. They are utilized in energy production and the metabolism of proteins, fats, and carbohydrates - essential processes in every cell in the body. Riboflavin coenzymes are also active in the body's primary detoxification system.

"They aren't fountains of youth, but a growing body of evidence suggests that B vitamins play an important role in protecting against many age-related problems, from heart attacks and strokes to Alzheimer's disease and osteoporosis."
Andrew Weil, M.D.

Find out if supplemental B vitamins are right for you – get your free personalized recommendation from Dr. Weil's Vitamin Advisor.

Buy Vitamin B Complex Retail at a store near you using the Retail Store Locator for locations in the U.S.

Weil Nutritional Supplements are based on stringent scientific research. Current, valid studies (published in peer-reviewed scientific journals) are the basis of our formulations, and all products are designed, selected, and approved by Dr. Weil and a team of physicians and researchers who are experts in the field of nutritional supplementation.

All our products are made by manufacturers who must meet our strict guidelines for quality control, as well as Good Manufacturing Practices in all aspects of production, testing and packaging. All product ingredients are tested both prior to and after manufacturing to ensure that the constituents and doses are correct. Additionally, our products are free of any preservatives, artificial colors or flavorings, and non-essential additives.