Zone Diet

The Zone Diet regulates carbohydrate intake to control the body's insulin levels.
Lower insulin levels boosts the metabolism, making the body more efficient.
Your food intake should be 30% protein, 40% fat, and 40% carbohydrates (typically in the form of fruits and vegetables that are rich in fiber).

The Zone Diet typically produces quick results - most dieters lose at least five pounds in the first two weeks.
While the Zone results in rapid weight loss for many dieters, some experts believe they only lose water weight and muscle mass that will be quickly regained.
Critics of the Zone worry that it is dangerously low in important vitamins and nutrients.
The diet's supporters argue that the Zone can prevent heart disease, prevent diabetes, and lower blood pressure.
Since the Zone is higher in protein and fat than many diets, dieters leave meals feeling more satisfied. This helps prevent people from prematurely quitting the diet.
Because of its high protein levels, the Zone Diet is not appropriate for people with weak kidneys.
Critics of the Zone contend that Barry Sears, the book's author, uses testimonials instead of scientific research to support his claims.
While the diet can be customized for individual dieters, its general guidelines are easy to follow - eat a fist-sized portion of protein at every meal with several helpings of fruits and vegetables.

Generally, the diet receives more support from nutritionists than most of its low-carbohydrate counterparts like Sugar Busters or Atkins. The Zone permits more fruit and vegetables, which are often limited by other low-carb diets.

A wide variety of foods are allowed, so dieters will not feel oppressed by a long list of forbidden ingredients.