Vitamin B is a group of essential nutrients that play a key role in numerous metabolic processes in the body, including supporting nerve function. This group consists of eight distinct vitamins, each of which performs a specific function that works together to maintain overall health.
Deficiencies in vitamin B can lead to various health problems such as fatigue, nervous system disorders, and anemia. Understanding the types of vitamin B, their functions, and natural sources is crucial for maintaining adequate intake and promoting optimal health.
Types and Functions of Vitamin B
Vitamin B1 (Thiamine)
Vitamin B1 or thiamine is vital for carbohydrate metabolism, which helps produce the energy needed by the body. It also plays an essential role in maintaining healthy nerve and heart function.
A deficiency in Vitamin B1 can lead to beriberi, a condition marked by nerve issues, muscle weakness, and heart problems.
Natural sources of Vitamin B1 include grains, nuts, yeast, red meat, and sunflower seeds. Regular consumption of these foods helps meet the body’s thiamine needs.
Vitamin B2 (Riboflavin)
Vitamin B2, also known as riboflavin, is essential for energy production, healthy skin maintenance, and tissue repair. Additionally, it acts as an antioxidant, helping protect the body’s cells from oxidative stress caused by free radicals.
Deficiency in Vitamin B2 can lead to conditions such as canker sores, chapped lips, dry eyes, and skin irritation.
Vitamin B2 can be found in foods like milk, yogurt, whole wheat bread, egg whites, leafy green vegetables, red meat, and liver.
Vitamin B3 (Niacin)
Niacin, or Vitamin B3, plays a critical role in the body’s energy metabolism, supporting the nervous system, and maintaining healthy skin. It also aids in converting food into energy and plays a part in DNA repair.
A deficiency in Vitamin B3 can cause pellagra, which is characterized by skin inflammation (dermatitis), diarrhea, and mental confusion (dementia).
Natural sources of Vitamin B3 include fish, poultry, red meat, milk, eggs, whole wheat bread, nuts, mushrooms, and other protein-rich foods.
Vitamin B5 (Pantothenic Acid)
Vitamin B5, also called pantothenic acid, is involved in hormone synthesis, fat metabolism, and energy production. This vitamin also helps break down carbohydrates, proteins, and fats into usable energy for the body.
Although Vitamin B5 deficiency is rare, it can cause symptoms like fatigue, sleep disturbances, headaches, and digestive problems.
Vitamin B5 can be found in red meat, milk, liver, kidneys, eggs, nuts, and legumes.
Vitamin B6 (Pyridoxine)
Vitamin B6, or pyridoxine, is crucial for protein metabolism, neurotransmitter production, and hemoglobin formation. It also supports the immune system and promotes a healthy nervous system.
Deficiency in Vitamin B6 can cause issues such as anemia, depression, nerve disorders, and skin irritation.
Vitamin B6 is found in various foods like legumes, green leafy vegetables, fish, shellfish, red meat, poultry, nuts, liver, and fruits like bananas and avocados.
Vitamin B7 (Biotin)
Biotin, also known as Vitamin B7, is essential for the metabolism of fats, proteins, and carbohydrates. It also supports the health of hair, skin, and nails, which is why it's often included in beauty supplements.
A deficiency in biotin can lead to problems such as hair loss, dry skin, and brittle nails.
Natural sources of biotin include egg yolks, liver, cauliflower, peanuts, chicken, and mushrooms.
Vitamin B9 (Folic Acid)
Folic acid, or Vitamin B9, is vital for the formation of red blood cells and fetal development during pregnancy.
A deficiency in folic acid can lead to megaloblastic anemia, characterized by abnormal red blood cell production. Additionally, low folate levels in pregnant women can increase the risk of complications such as birth defects, including neural tube defects and premature birth.
Vitamin B9 can be found in foods like green vegetables, legumes, grains, liver, poultry, eggs, cereals, and citrus fruits.
Vitamin B12 (Cobalamin)
Vitamin B12, or cobalamin, is essential for red blood cell formation, maintaining a healthy nervous system, and helping metabolize fatty acids and produce energy.
Vitamin B12 deficiency can cause pernicious anemia, where the body struggles to produce healthy red blood cells. Deficiency can also lead to nerve issues like numbness or tingling in the hands and feet, along with fatigue.
Vitamin B12 is found in animal products, such as liver, red meat, milk, cheese, eggs, and various other processed animal products.
Vitamin B plays a crucial role in maintaining overall health, so it’s important to ensure you're meeting your daily nutritional needs by consuming a balanced diet.
If you have questions about vitamin B or need guidance on appropriate dosages, you can consult with a healthcare provider or use the consultation feature on the Ai Care app, which is available for download on the App Store and Play Store.
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- dr Hanifa Rahma
Better Health Channel. Vitamin B. Available from: https://www.betterhealth.vic.gov.au/health/healthyliving/vitamin-b
Health Direct (2024). Vitamin B and your health. Available from: https://www.healthdirect.gov.au/vitamin-b-and-your-health
Jennifer Berry (2024). A complete guide to B vitamins. Available from: https://www.medicalnewstoday.com/articles/325292