How much sugar do fruit, berries and vegetables contain?
Sugars occur naturally in varying amounts in fruit, berries and vegetables. Sugar beet and sugar cane are the only plants that contain so much sugar that it is worth extracting.
Sugars are formed from water, sunlight and carbon dioxide. Table sugar is called sucrose. Sucrose consists of equal parts glucose (grape sugar) and fructose (fruit sugar). Sucrose occurs together with fructose and glucose in all fruits and vegetables.
The concentration of sugars in fruit, berries and vegetables varies according to type and variety – for example, different varieties of apples contain different amounts of sugars.
Sugar beet and sugar cane are the only plants that contain so much sugar that it is worth extracting.
Other types of sugars include lactose, which is present in milk products, and maltose, which is present in starch from grains such as wheat and barley.
All sugars are carbohydrates and have an energy content of 17 kilojoules (kJ) per gram (4 kcal per gram).