Insights on Medical Nutrition Therapy for Type 2 Diabetes Mellitus: An Indian Perspective

It is critical to integrate medical nutrition therapy (MNT) provided by a registered dietician (RD) into primary care of type 2 diabetes mellitus (T2DM). This is necessary to achieve the goals of improving overall metabolic measures beyond calorie restriction and weight loss. Misconceptions about nutrition in T2DM add to the challenges of executing MNT in a culturally sensitive population. The current review provides insights into MNT for the prevention and management of T2DM in India, based on both evidence and experience. It revisits historical Indian studies and provides information on appropriate dietary intake of carbohydrates (60-70%), proteins (similar to 20%) and fats (10%) that will be acceptable and beneficial in an Indian T2DM population. It discusses nuances of types of carbohydrates and fats and explains associations of increased dietary fiber intake, balanced intake of low and high glycemic index foods and substitution of saturated fats with plant-based polyunsaturated fats in improving outcomes of T2DM and attenuating risk factors. The article also deliberates upon special patient populations with comorbid conditions and diseases and the necessary adjustments needed in their nutritional care. It outlines a step-wise approach to MNT involving a careful interplay of nutrition assessment, diagnosis, individualization and patient counseling. Overall, the success of MNT relies on providing accurate, acceptable and appropriate dietary choices for continued patient adherence. Collaborative efforts from diabetologists, endocrinologists, internists and RDs are required to prioritize and implement MNT in diabetes practice in India.