Vitamin B12

Also known as: Cobalamin, Methylcobalamin, Adenosylcobalamin, Hydroxocobalamin, Vitamin B12a, Vitamin B12b, Coenzyme B12, Cyanocobalamin

Vitamin B12 is an essential nutrient that plays a vital role in maintaining overall health by supporting the proper function of nerve cells, aiding in the production of DNA, and helping to form red blood cells, which are responsible for transporting oxygen throughout the body. Typically found in animal-derived foods such as meat, fish, eggs, and dairy, Vitamin B12 is especially important for people following vegetarian or vegan diets—who avoid these food groups—to consider supplementation in order to meet their nutritional needs. The absorption of Vitamin B12 begins in the stomach and intesti...

Potential Side Effects

Side effects score: 1; Vitamin B12 is generally considered safe and well-tolerated, with few side effects. Some individuals may experience mild issues such as dizziness, headache, anxiety, or gastrointestinal discomfort. In rare cases, allergic reactions can occur, leading to symptoms like rash or itching.