Vitamin B complex is actually a group of B vitamins that are necessary for healthy growth and development. B vitamins are commonly found in fruits and vegetables, and a balanced diet typically provides adequate amounts of these vitamins. Ask your health care provider whether a B complex vitamin is appropriate for you and whether you need to supplement with any one specific B vitamin.
Vitamin B1
Vitamin B1, also called thiamine, is said to help boost the immune system and help the body function under stressful conditions, says the University of Maryland Medical Center. Vitamin B1 also helps the body produce adenosine triphosphate, or ATP, which is used for energy by the body.
Vitamin B2
Riboflavin is another name for vitamin B2. This vitamin is used to help treat migraines, cervical cancer, acne, muscle cramps and some blood disorders, according to MedlinePlus. This vitamin also strengthens the immune system and helps maintain skin, hair and nail health.
Vitamin B3
Vitamin B3, or niacin, can lower high cholesterol levels and reduce the risk of hardening of the arteries and heart attack. The Mayo Clinic states that it may also have beneficial effects on preventing Type 1 and Type 2 diabetes and may treat or prevent headaches. More research needs to be done on these conditions and niacin.
Vitamin B5
Pantothenic acid, which is vitamin B5, is integral to the production of new red blood cells and sex and stress hormones in the body, states the University of Maryland Medical Center. This vitamin is also important in digestive health and helps the body synthesize other vitamins.
Vitamin B6
Vitamin B6, called pyridoxine, aids in red blood cell formation, healthy functioning of the nervous system, hormone function and niacin formation, according to the Linus Pauling Institute. The American Cancer Society adds that it helps the body break down protein.
Vitamin B7
Biotin is the more common name for vitamin B7 and is typically used to help treat hair loss, infants with skin rashes, diabetes, brittle nails and depression, says MedlinePlus. It can also be given for biotin deficiency associated with long-term tube feeding and malnutrition.
Vitamins B9 and B12
Vitamin B9, commonly known as folic acid, and vitamin B12, or cobalamin, work together in the body for various functions. The University of Maryland Medical Center states that these vitamins help produce DNA and RNA and also aid in producing red blood cells and encourage proper use of iron in the body. Folic acid is also important in healthy fetal development and prevention of neural tube defects.



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