Obesity is recognized as a multifactorial disease that is caused by a number of both physical and behavioral variables (including bad habits when eating, a decompensated energy balance, sedentary lifestyle, and others).

Treatment of obesity and diet plan are two concepts that go together in any approach to this disease.

Diets will help you to decrease caloric intake and, therefore, to improve the energy balance (lose more and gain less weight).

The role of the dietitian in the treatment of obesity involves several steps:

• Dietary and nutritional assessment of the patient by BMI and anthropometric assessment. It is done in the visit office by measuring perimeters of various body parts and calculating the value of their weight in relation to your size and age (BMI) and, therefore, the ideal weight and the excessive overweight is calculated, identifying a realistic goal.
• 24h recall and diet history that the patient makes with their current eating habits, filling in a questionnaire, which may be required on several occasions, and which the dietitian will analyze in detail so that you both (patient and specialist) can identify bad and inadequate habits or simply “myths” that the patient still believe.
• Blood tests to identify possible alterations that are important to prepare a dietary and nutritional plan.
• Biweekly follow-up in order to offer food re-education and response tests where those patients who really respond to food restriction are identified.