Sugar is a type of carbohydrate that is found naturally in many foods including fruits, vegetables and whole grains. According to The Sugar Association Inc., pure sugar, or sucrose, is found most highly concentrated in sugar beets and sugar cane. Once processed, both sugar beets and sugar cane yield approximately 99.95 percent pure sugar. Sugar is naturally fat and cholesterol free and can be used in beverages, baked goods, marinades and soups to add varying degrees of sweetness.
Calories
A teaspoon of granulated sugar contains 16 calories. The packets of sugar, commonly seen in restaurants, contain a little over a teaspoon of sugar and provide only 11 calories per packet. While it is low in calories, sugar should be consumed in moderation to lessen excessive calorie intake and unwanted weight gain. Consuming an additional teaspoon of sugar each day for one year can add up to a weight gain of almost two pounds.
Fat
Sugar is a fat-free food. Often, foods high in sugar, such as baked goods, are also high in fats such as butter, shortening and lard. These fats are also high in saturated and trans fats, which can elevate cholesterol levels and increase the risk of heart disease. It is important to consume high-sugar and high-fat foods only in moderation to promote heart health.
Carbohydrates
Sugar is made entirely out of sucrose. Sucrose is a type of carbohydrate that the body uses for fuel. Without sucrose, the brain is unable to function properly. A teaspoon of sugar contains 4.2 grams of carbohydrates. A packet of sugar contains only 2.8 g carbohydrates.
Protein
Sugar contains no protein. Because protein is needed by the body to build and repair cells and muscles, it is important to consume a wide variety of protein-containing foods throughout the day. Foods rich in protein include meats, beans, dairy foods, nuts, fish and soy products.



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