A diet may be a fad diet or a healthy diet. People often start a fad diet for fast weight loss. They do not realize that quick weight loss and a fad diet is not the answer for their weight problem. They may lose weight initially but that may not be permanent. The fad diets recommend to eat a certain group of foods and eliminate some foods or a group of foods from the diet. Such diets are not without a danger.
Some of the fad diets are:
Grapefruit Diet : This diet recommends to eat only grapefruit.
Low Carb Diet : This diet recommends to eat foods low in carbohydrates.
Low Fat Diet : This diet recommends to eat foods low in fats or eliminate fats in diet.
High Protein Diet : This diet recommends to eat only protein rich foods, eliminating carbohydrates
Note that these diets recommend to eliminate some food groups that are essential for a healthy body. These diets may offer only a temporary solution and are not based on the recommendationsof the food pyramid. On using a fad diet, you may lose weight fast, but later on you may again gain weight and your body may be deficient in many nutrients that can develop health problems.
A good diet should provide all the major nutrients including dietary fibers, carbohydrates, proteins, good fats, minerals, and vitamins. The best way to tackle overweight and obesity problem is to eat a balanced diet and do some physical exercise daily.
You should not start any diet if it does not allow any major group of the food pyramid.
The negative calorie diet is based on neagtive calorie foods that include vegetables, fruits, legumes, lentils, and beans, so it allows all the major nutrients in the diet necessary for good health. By eating these foods, you will never feel hungry and you will never gain weight. If you remain physically active and eat these foods, you will deop pounds permanently.