Vitamin B12 is a crystalline compound essential to a number of micro-organisms and
animals, including humans. So far as is known it is not present in higher plants.
Pure vegetarian food is nearly free from vit. B12. It is a nutrient that needs attention
in vegan diet. Vegetarians are at risk for vitamin B(12) (B12) deficiency due to suboptimal
intake. Dietary deficiency of vitamin B12 due to vegetarianism is increasing and causes
hyperhomocysteinemia Areas for research include intermittent vitamin B12 supplement
dosing and better measurements of the bioavailability of B12 in fermented vegetarian
foods and algae. The goal of the present literature review was to create an awareness
among the vegans to identify the vegetarian sources of Vitamin B12 and to incorporate
them into their daily diet.
Keywords:
vegan - fortified sources - macrocytic anemia - perinicious anaemia