How much vitamin B2 should you get each day?

The amount of vitamin B2 required is thought to be related to the amount of protein and energy supplied. During accelerated growth, recovery from old injuries, pregnancy and lactation, the requirement for protein increases, as does the requirement for vitamin B2. Because of the labor intensity, age, gender and physiological conditions of different, people need different amounts of vitamin B2. Infants need 0.4 to 0.6 mg daily, children 0.6 to 1.2 mg daily, and adults 1.3 to 1.7 mg daily (equivalent to 0.5 mg / 4184 kJ).