There are many different types of sugars. They all provide 4 kcal/17 kJ per gram. The sugars most commonly present in foods include: sucrose, glucose, fructose, maltose and lactose. All of these sugars occur naturally.
- Sucrose is simply table sugar.
- Glucose, fructose and sucrose are found in honey, and fruit and vegetables (see table below).
- Maltose is a sugar produced by starch breakdown and is found in germinating cereals such as barley
- Lactose is found in milk and milk products
Examples of sources of sugars in various fruits, vegetable and honey:
|Source of sugars
||Glucose content (g/100g)
||Fructose content (g/100g)
||Sucrose content (g/100g)
||Total sugars content (g/100g)
 Source: Finglas P.M., Roe M.A., Pinchen H.M., Berry R., Church S.M., Dodhia S.K., Farron-Wilson M. & Swan G. (2014) McCance and Widdowson’s The Composition of Foods, Seventh summary edition. Cambridge: Royal Society of Chemistry.