You really need B vitamins
The B vitamins are a group of eight water-soluble vitamins. They are coenzymes in a variety of metabolic processes in the body, and often work together—though each has a unique role as well. B vitamins are critical for building and repairing DNA and RNA, for producing energy, supporting mitochondrial function, and for synthesizing neurochemicals. And because they are involved in so many processes, deficiencies in B vitamins can lead to many problems. Are you getting enough B vitamins?
Vitamin B3 - Niacin
Niacin is a keystone B vitamin that does a little bit of everything. It’s fundamental in energy metabolism, protects against oxidative stress, balances blood lipids, and may play a role in longevity. It supports the brain, skin, and gut. Most people likely get enough from diet (with good sources being meat, fish, nutritional yeast, and sprouted or fermented seeds, grains, and legumes), though some groups are at risk for deficiency. High doses can be used to treat high lipid levels, though side effects are common at high doses. The best way to know how you are doing with niacin is to check your levels. What are yours?