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Fructose exists in foods either as a monosaccharide (free fructose) or as a unit of a disaccharide (sucrose). Free fructose is a ketonic simple sugar and one of the three dietary monosaccharides absorbed directly by the intestine.
Fructose is a keto-hexose (ketose-hexose) isomer of glucose, with a ketone group on carbon 2 (Fig. 1 and Table 1). Both galactose and fructose occur in the D-form in nature like glucose and also occur as constituent units within larger molecules.
18 Ιουν 2024 · Fructose is both an added sugar and a naturally-occurring molecule in many foods, especially fruit. Learn about metabolic risks with high fructose diets.
23 Αυγ 2024 · Foods high in added fructose include sauces, salad dressings, sugary drinks, colas, yogurt, baked goods, and fast foods. Foods naturally rich in fructose include honey, molasses, agave, dried fruits, fruits, and fruit juices.
14 Ιαν 2020 · Fructose is the main naturally found sugar in honey and fruits (e.g. dates, raisins, figs, apples, and freshly pressed fruit juices) and in small amounts in some vegetables (e.g. carrots).
20 Νοε 2020 · Sometimes called “fruit sugar,” fructose is a naturally occurring sugar found primarily in fruits (such as apples, dates, figs, pears and prunes), but also in vegetables (such as artichokes, asparagus, mushrooms, onions and red peppers), honey, sugar beets and sugar cane.
This article reviews the properties and sources of fructose in the food supply, the estimated intake of fructose in Western diets, the intestinal absorption of fructose, and the metabolism of fructose and its effect on lipid and glucose metabolism.
