The Practical Guide: Identification, Evaluation, and Treatme

ElPumaMex

I have found this very complete clinical guide, intended for doctors, on Obesity and its treatment:

http://www.nhlbi.nih.gov/guidelines/obesity/ob_home.htm

"Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults

The National Heart, Lung, and Blood Institute, in cooperation with the National Institute of Diabetes and Digestive and Kidney Diseases, released the first Federal guidelines on the identification, evaluation, and treatment of overweight and obesity. About 97 million adults in the United States are overweight or obese"


The complete study is there, plus some calculators.

Very interesting is to find out the maximum body circumference to avoid risks (102 cm).

Also I recommend you to read:

http://www.nhlbi.nih.gov/guidelines/obesity/prctgd_c.pdf

For example, page 27 shows some guidelines for a Low Calorie Diet:

Nutrient Recommended Intake

Calories: Approximately 500 to 1,000 kcal/day reduction from usual intake

Total fat: 30 percent or less of total calories
Saturated fatty acids: 8 to 10 percent of total calories
Monounsaturated fatty acids: Up to 15 percent of total calories
Polyunsaturated fatty acids: Up to 10 percent of total calories
Cholesterol: <300 mg/day
Protein: Approximately 15 percent of total calories
Carbohydrate: 55 percent or more of total calories
Sodium chloride: No more than 100 mmol/day (approximately 2.4 g of sodium or
approximately 6 g of sodium chloride)
Calcium: 1,000 to 1,500 mg/day
Fiber: 20 to 30 g/day