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8 Types of Vitamin B and their Benefits

8 Types of Vitamin B and their Benefits
  • 14 Aug 2023
  • Redaksi Liveaman
  • Mins

Vitamin B complex is a group of essential vitamins for human body health. Comprising various types of vitamin B, this group plays a crucial role in various biological functions of the body. Vitamin B complex consists of eight different B vitamins: B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folic acid), and B12 (cobalamin). Each type of vitamin B has its own specific benefits and roles in maintaining bodily health.

Also read: All About Vitamin D

Types of Vitamin B and Their Benefits

  1. Vitamin B1 (Thiamine): Vitamin B1 plays a role in converting carbohydrates into energy. It also supports the nervous system and muscle functions. Deficiency in vitamin B1 can lead to dangerous conditions like beriberi, which affects the nervous and cardiovascular systems.
  2. Vitamin B2 (Riboflavin): Vitamin B2 is essential for tissue growth and maintenance, as well as eye health. It also plays a role in energy metabolism.
  3. Vitamin B3 (Niacin): Vitamin B3 is involved in energy metabolism and helps maintain skin health, the nervous system, and digestion. Niacin deficiency can lead to a condition called pellagra, affecting the skin and digestive system.
  4. Vitamin B5 (Pantothenic Acid): Vitamin B5 is required for hormone synthesis and fat metabolism. It also contributes to the formation of hemoglobin and neurotransmitters.
  5. Vitamin B6 (Pyridoxine): Vitamin B6 plays a role in brain and nervous system function. It’s also important for protein metabolism and red blood cell production.
  6. Vitamin B7 (Biotin): Vitamin B7, known as the “beauty vitamin,” is important for maintaining skin, hair, and nail health. It also contributes to fat and carbohydrate metabolism.
  7. Vitamin B9 (Folic Acid): Vitamin B9 is crucial during pregnancy as it helps in the formation of new cells and fetal nervous system development. It also supports red blood cell production and tissue maintenance.
  8. Vitamin B12 (Cobalamin): Vitamin B12 is key for nerve health and red blood cell formation. It also plays a role in energy metabolism and DNA synthesis.

Vitamin B Deficiency and Its Impact

Deficiency in vitamin B complex can lead to various health issues. For example, vitamin B1 deficiency can cause beriberi with symptoms like muscle weakness and heart problems. A lack of vitamin B2 can result in skin problems and vision disturbances. Niacin deficiency can lead to pellagra with symptoms of dry skin, diarrhea, and mental disturbances. Vitamin B12 deficiency can cause megaloblastic anemia and serious neurological problems.

Sources of Vitamin B

Vitamin B complex can be found in various foods. Carbohydrate-rich cereals, grains, legumes, meats, fish, eggs, dairy products, green vegetables, and fruits are some rich sources of vitamin B. However, some B vitamins, such as B12, are primarily found in animal products.

Vitamin B Dosage and Side Effects

The required dosage of vitamin B varies depending on the type of vitamin and individual conditions. Most people can meet their vitamin B needs through a balanced diet. However, in certain situations, such as pregnancy, lactation, or specific medical conditions, vitamin B supplements may be necessary.

Side effects of vitamin B are rare when taken in appropriate doses. However, some individuals might experience allergic reactions to specific vitamin B supplements. In some cases, taking high doses of vitamin B6 over the long term can lead to nerve disturbances.


Vitamin B complex is a group of vitamins essential for maintaining bodily health and various biological functions. Each type of vitamin B has its unique role in supporting a healthy bodily system. It’s important for individuals to ensure adequate intake of vitamin B through a balanced diet and a healthy lifestyle. If you suspect a risk of vitamin B deficiency, consult a medical professional for appropriate guidance regarding vitamin B intake and your health needs.

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