A vegan is someone who does not consume food derived from animals, it might be for a dietary reason, ethical reasons or environmental reasons. Strict vegans do not stand the idea of even using animal products such as leather, honey, eggs or even milk. Vitamin D is a unique vitamin as it is one for which there exist no vegetarian sources except some mushrooms. This limitation of vegetable sources leaves most vegans vitamin D deficient. It can be attained through exposure to sunlight but for those who reside in temperate…