There is no denying to the fact that meat is an important part of a balanced diet but one needs to be highly cautious about overeating. The very first reason is that meat provides zero fibre which is not good for health. Secondly, they are loaded with proteins, which is also bad as you may put in more than your body requires and mess your kidneys. So, many nutritionists have made a ground rule that one must eat non-veg but incorporate it in a plant-based diet not vice-a-versa.
