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.
Carbohydrates. Carbohydrates consist of single-sugar units called monosaccharides, double-monosaccharide units known as disaccharides and multiple-monosaccharide molecules that make up starches.The predominant purpose of the carbohydrates you eat is to provide fuel to your cells.arbohydrates. Carbohydrates consist of single-sugar units called monosaccharides, double-monosaccharide units known as disaccharides and multiple-monosaccharide molecules that make up starches.