Vegetables are full of Vitamins and minerals and they are sufficient even if you quit non-veg. They should be used according to the season and you'll get more immunity for that season. Also vegetables never have disease Mad cow, Bird flue etc.
Vegetable nutrition has widely drawn the attention of fitness conscious as well as food scientists alike for their proven health benefits.
For our healthy purpose vegetables are most important , my granie is 85 year old she is very healthy which is only because of vegetables and fruits. Vegetables are a healthy part of any diet. Whether you're interested in sculpting your body, or just want to tone it that extra bit, vegetables help in improving your overall health by maximizing your weight loss efforts. It is said that just eating 8-9 servings of vegetables in a day, you can improve your body's immunity against diseases such as diabetes, cancer and heart ailments.