A leveled teaspoon of granulated sugar has about 4.2 grams of carbohydrates and 16 calories. There is no protein, no cholesterol, no sodium and no fat in sugar. Sugar is a 100-percent natural substance and a substantial source of carbohydrates.
Carbohydrates, fats and proteins are macronutrients that the human body uses to maintain life and health. Cane sugar has been consumed by humans for many centuries, and its origins can be traced as far back as 326 B.C. Alexander the Great found sugar canes in 327 B.C and brought cane sugar to the people of the Mediterranean region of the world.