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.
The body can produce glucose from protein and fat, however carbohydrates are the most convenient and quickest way for the body to produce energy. Some weight-loss diets exclude or reduce carbohydrate intake triggering the body to convert its supply of fat to glucose.n Summary. Carbohydrates contain the glucose that the body needs for energy. There are two main types of carbohydrates, simple and complex. The more refined the carbohydrate the more quickly it is converted to glucose and released into the bloodstream.