THIS INVENTION PROVIDES A COMPOSITION AND METHOD FOR PROVIDING NUTRITIONAL SUPPORT TO OBESE PATIENTS. THE COMPOSITION HAS AN ENERGY DENSITY BETWEEN 0.4 AND 0.9 KCAL/ML AND COMPRISES A PROTEIN SOURCE WHICH COMPRISES AT LEAST 30% BY WEIGHT WHEY PROTEIN AND PROVIDES AT LEAST 30% OF THE TOTAL CALORIES OF THE COMPOSITION. THE COMPOSITION MAY INCLUDE A CARBOHYDRATE SOURCE AND A LIPID SOURCE. PREFERABLY, AT LEAST 50% BY WEIGHT OF THE PROTEIN SOURCE IS WHEY PROTEIN. THE INVENTION FURTHER EXTENDS TO USE OF THE COMPOSITION IN THE PREVENTION OR TREATMENT OF MALNUTRITION IN OBESE PATIENTS.