Vitamin B is a group of nutrients that play many important roles in your body. Most people get the recommended amounts of these vitamins through diet alone since they are found in a wide variety of foods. Notably, there are eight types of vitamin B: B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6, B7 (biotin), B9 (folate), and B12. Each one of these vitamins plays an essential role in keeping the body functioning properly; they help convert food into energy, create new blood cells, and maintain healthy skin cells, brain cells, and other body tissues. However, vitamin B deficiencies can lead to a number of health issues. A lack of B6 can lead to certain kinds of anemia, while a deficiency in B12 can cause fatigue, constipation, weight loss, and depression. It’s also worth noting that excessive intake of certain B vitamins can be harmful. For instance, too much niacin can cause skin flushing; furthermore, high doses of B6 can lead to nerve damage. Therefore, it’s important to strike a balance in the intake of vitamin B to ensure the body maintains optimal health.