Vitamin B12 Introduction: Vitamin B12 is also known as cobalamin. Another common name for Vitamin B12 is red vitamin because it exists as a dark red crystalline compounds. B12 plays a major role in the production of Red Blood Cells (RBCs) and in the functioning of our nervous system. Vitamin B12 is naturally found in animal products, including fish, meat, poultry, eggs, milk, and milk products. B12 is generally not present in plant foods, but fortified breakfast cereals are a readily available source of B12 with high bio availability for vegetarians. How Much To Get? The answer depends on things including our age, our eating habits and medical conditions, and what medications you take. The average recommended amounts, measured in micro-grams (mcg), vary by age: Infants up to age 6 months: 0.4 mcg Babies age 7-12 months: 0.5 mcg Children age 1-3 years: 0.9 mcg Kids age 4-8 years: 1.2 mcg Children age 9-13 years: 1...