Calculate optimal Vitamin B12 dosages in milligrams (mg) using your body weight in kilograms (kg) or pounds (lbs). Our free dosage calculator provides personalized dose recommendations based on research data. Mild, moderate, and strong Vitamin B12 dosage range options are provided for safe use.
Calculate Vitamin B12 Dosage
Based on your body weight of kg
Vitamin B12 (Cobalamin) is an essential B vitamin that serves as a cofactor for methionine synthase and methylmalonyl-CoA mutase enzymes, which supports DNA synthesis, nerve myelination, and energy production while reducing homocysteine levels.
How to Take Vitamin B12
Vitamin B12 is typically dosed at 500-1000 mcg daily for cognitive support, can be taken once daily with or without food, and methylcobalamin or adenosylcobalamin forms are generally more bioactive than cyanocobalamin, particularly for neurological support.