Unfortunately, due to the highly restrictive nature of the diet, vegans are at risk of being deficient in certain nutrients such as calcium and vitamin B12 usually found in dairy and meat respectively.

A vegan diet is based on plants (such as vegetables, grains, nuts and fruits) and foods made from plants. Vegans do not eat foods that come from animals, including dairy products and eggs.

Vegans don't eat meat or dairy products like eggs and cheese. Instead, vegans eat either plants themselves (such as leafy greens like spinach and lettuce), products that plants produce (fruits, seeds, nuts, and legumes), or products that are derived from plants (such as olive oil and tofu).