Vitamin B12: An Introduction
Vitamin B12, or cobalamin, is a water-soluble micronutrient primarily found in animal foods and is produced by micro-organisms. The natural sources of vitamin B12 are milk and its products, meat, poultry and eggs. The vegetarian sources of B12 include milk, yogurt, cheese, fermented soy products, fermented beans and vegetables, edible mushrooms, edible algae and fortified nutritional yeast. Food products like breakfast cereals, juices and tofu are fortified with vitamin B12 and are proposed to have high bioavailability
