Sugar is a carbohydrate, which is either a monosaccharide containing a single sugar molecule or a disaccharide, composed of two monosaccharides. Monosaccharide and disaccharide compounds found in foods we eat are collectively called 'sugar'.
There are two types of sugars in our diet:
Naturally occurring sugars
Added sugars
Naturally-occurring sugars refer to sugar, which occur naturally in foods such as fruits and dairy products.
Added sugars refer to sugars such as table sugar, brown sugar, maple syrup, honey and caloric sweeteners like high fructose corn syrup, which are added to foods or beverages while processing or preparation. Cakes, chocolates, ice creams and cookies are some foods with added sugars.