For a 2,000-calorie diet, this amounts to a maximum of 22 grams of saturated fat if youâre healthy, or just 15.5 grams if youâre worried about your heart. These fat grams take up some of your total fat gram allowance for the day.
Carbohydrates have six major functions within the body: 1  Providing energy and regulation of blood glucose. 2  Sparing the use of proteins for energy. 3  Breakdown of fatty acids and preventing ketosis. 4  Biological recognition processes. 5  Flavor and Sweeteners.
Energy Production. The primary role of carbohydrates is to supply energy to all cells in the body. Many cells prefer glucose as a source of energy versus other compounds like fatty acids.Some cells, such as red blood cells, are only able to produce cellular energy from glucose.nergy Production. The primary role of carbohydrates is to supply energy to all cells in the body. Many cells prefer glucose as a source of energy versus other compounds like fatty acids.