Animal products like milk, eggs and a few grams of meat can supply nutrients that would require consuming large portions of plant-based foods contrary to the belief of most vegetarians.
The United Nations Nutrition, in its latest report on livestock-derived foods, notes that morsels of meat, eggs and servings of milk have 12 times the nutrition quality provided by say, carrots, which are rich in vitamin A and whose deficiency is “the leading cause of preventable blindness and can increase their risk of dying from diarrhoeal diseases and measles”....