A vegetarian diet can have many nutritional benefits, if it is rich in fruits and vegetables, and contains moderate amounts of seeds, nuts, whole grains and legumes. One of the main benefits of a proper vegetarian diet is its low caloric content in relation to the bulk supplied, which helps maintain ideal weight.
Another benefit of the vegetarian diet is the much lower intake of fat, if dairy products, seeds and nuts are eaten sparingly. This accounts for lower serum cholesterol levels found in vegetarians, which considerably reduces the risk of developing heart diseases and breast and colon cancer.
A third nutritional advantage of the vegetarian diet is its high fibre content. Fibre, being indigestible, increases the bulk of the faces, keeps them soft and makes them easy to expel. One study has indicated that lacto-ovo vegetarians consume twice as much and vegans four times as much fibre as non-vegetarians. High fibre intake has been associated with decreased risks of diseases of the colon, appendicitis, cancer of the colon and rectum, hiatus hernia, piles and varicose veins.