The Zone Diet is what is referred to as a 40/30/30 plan. What does this mean? Basically, that means you get 40% from carbohydrates, 30% from proteins, and then 30% from fats.
It is believed that the Zone Diet plan is probably good for
diabetes.
This is because there is a strict balance between carbohydrates, fats, and proteins. You stick to small portioned allowances, and that is it for each day.
The problems with this plan is that it does not really allow the body to have enough calorie intake to feel satisfied. The maker of the diet Barry Sears, says you need to tally up how many blocks each of carbohydrate, protein, and fats you'll receive which is all planned around your current weight. And no matter how you work it, the plan is 900 calories or less. This is not enough to achieve optimal health.
The carbohydrates allowed on this program are items such as lentils, beans, whole grains, and a lot of fruits, provided fruits are fresh.
The carbohydrates that are frowned upon in this plan are foods such as any brown rices, papaya and pastas, breakfast cereals, tortillas, bagels, fruit juices, and carrots.
Insofar as dairy products are concerned, the diet author, Sears, would prefer egg whites or egg substitutes over eggs in the carton. Cheeses should be low-fat, and also low-fat milk.
On fats: saturated fats should be kept way down as they are on any plans. The healthier fats such as canola oil, olive oils, and nuts are allowed in strict moderation.
Nutritionists have given this diet plan reviews that are anywhere from favorable to not favorable at all. Overall, the opinions are that the diet is too restrictive, and isn't anything you can stick with over the long term.