These are some tips and advice which may be useful to those following such diets:
1. White flour is one of the worst enemies of the dieter. It can make you blow up like a balloon. Avoid it as much as you can and if you are really serious about your diet, stay away from it completely. It has no real nutritional value, just calories. It lines the insides of your intestines and, by mixing with the liquids inside your stomach, it forms a kind of glue. This "glue" prevents waste matter from leaving your intestines and also prevents nutrients from entering.

If you are an athlete or a very active person you can get away with eating it more than others can. But it is still unhealthy. A regular Colon Cleanse can help clean it out of you.

2. Cooked potatoes are similarly dangerous and possibly even more insidious as they are considered by some to be "a vegetable." The starches inside potatoes are very fattening, whether boiled, baked, or fried.

3. Other white starches, such as white rice, are similarly dangerous.

4. Make sure you get enough protein. This can be easy to miss, whether due to oversight or attempted economy, when you are eating vegetarian food. One of the best inexpensive vegetarian sources of protein is beans, and there are an infinite variety of ways to prepare beans.

5. Raw nuts are a very good source of protein which also contain oils that can help you lose weight or handle other physical troubles.

6. Of course, avoid sugar.

7. Try to avoid heavily mixing proteins with carbohydrates. When you do this, the body uses different fluids to try to digest the different types of substances. These fluids don't mix well and the result is that your food can stay in your stomach for several hours longer than it should - even rotting inside you and letting off toxins, not to mention causing weight gain.

8. Don't skip exercise. If it is unconfrontable or if you, like me, are always too busy with something else, start with a small amount. Even 20 push-ups a day is a lot better than nothing and the more you do it the more you will get used to it and want to do more. It is my experience that exercise also causes me to crave healthy foods instead of junk. It is as if the body realizes it is getting "cleaning house," and then it goes on a roll.

I hope the above advice is useful to you and I wish you a happy, healthy life.
(Disclaimer: I am not a doctor and what I state in this article constitutes opinion and information I have gathered through research. I am not giving you official advice. What I say may or may not be true. If you need help with your body, see a doctor. End of disclaimer.)