Nature Made B12 is designed for people that care about their appearance. It is especially useful for pregnant women. Vitamin B12 is found in meat, sea fish and shellfish. Therefore, this supplement will be a great option for vegans and vegetarians. Vitamin B12 stimulates proliferation and differentiation of cells and also stimulates the synthesis of the DNA molecule. It is also useful for elderly people and people who drink alcohol. Vitamin B12 deficiency can lead to fatigue, drowsiness, irritability, depression, memory disorders, diabetes and heart diseases.