Medically reviewed by Jamie Johnson, RDN Key Takeaways Taking too much vitamin B6 can cause nerve damage and numbness in hands and feet.Niacin at high doses can cause flushing and, in extreme cases, ...

What Is Vitamin B Complex? Vitamin B complex is a supplement that contains eight B vitamins that perform important and related roles in your body’s cellular function. The vitamins that make up B ...

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Taking a B-complex vitamin may benefit your health if you do not get enough B vitamins from other sources. This can include people who are pregnant, vegan, or have certain medical conditions. B ...

Medically reviewed by Karina Tolentino, RD Key Takeaways B vitamins, or vitamin B complex, support energy production, brain health, and red blood cell formation.B12 is especially important for nerve ...

Vitamin B complex is used to increase the levels of various B vitamins in the body. The specific ingredients in vitamin B complex vary by product. Vitamin B complex is usually well tolerated, but it ...

If you need more B vitamins, Nordic Naturals, Thorne, and Klean Athlete all offer quality supplements. See what else our dietitians recommend, and learn if a B complex supplement is right for you.