Resumen

PINHEIRO V, Ana Carolina; CANAAN R, Fabiane Aparecida  y  GONCALVES A, Rita de Cássia. INSULINEMIA, FOOD INTAKE AND ENERGY METABOLISM. Rev. chil. nutr. [online]. 2008, vol.35, n.1, pp. 18-24. ISSN 0717-7518.  doi: 10.4067/S0717-75182008000100003.

Insulin is an anabolic hormone involved in the control of food intake and energy metabolism. Its secretion is mainly stimulated after the rise of glycemia in response to carbohydrate intake. However, this hormone is also secreted after the ingestion of protein and fat. High-fat diets results in lesser insulin levels, with consequent increase in hunger and prospective desire for food ingestion, favoring weight gain. Moreover, the ingestion of such diets results in an increase of fat oxidation, favoring the reduction of energy metabolism and consequently weight gain. Protein ingestion, separately, seems not to exert significant changes in the glycemic response. To understand the metabolic answers unchained by the ingestion of the different macronutrients is important to elucidate corporal weight modifications and the insulin resistance mechanism

Palabras clave : insulin; insulin resistance; macronutrients; alimentary ingestion; energy metabolism.