Vitamin B-6 enables proper levels of brain function and development, according to Everyday Health. It helps the body make norepinephrine and serotonin, two hormones that influence mood. Vitamin B-6 also assists with the production of melatonin, which governs the body's internal clock.
Research shows that the benefits of vitamin B-6 include positive influence on seizures, depression, Parkinson's disease and chronic pain, as stated by Everyday Health. The researchers believe that this may stem from the role that vitamin B-6 performs in producing dopamine and serotonin, which helps the nerves communicate. Some research has shown that a lack of vitamin B-6 increases the risk of rheumatoid arthritis and heart disease.
It is helpful to eat potatoes, bananas, beans, nuts, fortified cereals and whole grains to get enough vitamin B-6 in the diet, notes Everyday Health. Most multivitamins include vitamin B-6, although it is also available as an individually packaged supplement. Researchers suggest limiting total vitamin B-6 consumption to 100 milligrams per day, so it is important to talk to a physician before starting supplementation. Taking too much vitamin B-6 can elevate the risk of such issues as abdominal pain, nausea and neurological disorders, which is why ingesting vitamin B-6 through diet is preferable.