IF YOU KNOW anyone who's deficient in a B vitamin, you may see them taking a vitamin B-complex supplement. They're being touted as a cure to all your vitamin B related needs—but do you really need it?

B vitamins (also known as vitamin B complex) are a group of eight essential nutrients that support nearly all of your body’s functions, including metabolism, energy production, brain and nervous ...

Vitamin B1 or thiamine is a coenzyme in metabolic processes that convert carbohydrates that we obtain from foods into energy that is used by the heart, muscles, and nervous system for normal function.

Vitamin B complex for mental health: Vitamins B6, B9, and B12 help create neurotransmitters, which are necessary for your ability to remember and learn. A sufficient amount helps reduce cognitive ...

Emerging research highlights the crucial roles of the entire vitamin B-complex, beyond just B6 and B12, in maintaining brain health. These vitamins support energy production, neurotransmitter ...

Jessica is a former writer and editor at Forbes Health with over a decade of experience in both lifestyle and clinical health topics. Before Forbes Health, Jessica was an editor for Healthline Media, ...

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, ...

Overall, the researchers concluded that B-complex vitamins — especially folic acid, and possibly thiamine — may help delay or ...

Multivitamins often provide 100 percent of the daily value for most B vitamins, so you probably don’t also need to take a B-complex supplement. Because B vitamins are water-soluble, they don’t build ...

Pistachios, often overlooked, are a rich natural source of Vitamin B complex, crucial for energy, metabolism, and nervous system health. Beyond their vitamin abundance, these nutrient-dense nuts offer ...

A leading neuroscientist and health authorities caution that excessive daily vitamin B12 supplementation poses silent ...

B vitamins help your body produce or use the energy from your diet. They also help produce red blood cells. Because B vitamins also affect your metabolism, taking excess vitamins in a B complex ...