Fructose (also levulose or laevulose) is a simple reducing sugar found in many foods and is one of the three important dietary monosaccharides along with glucose and galactose. Honey, tree fruits, berries, melons, and some root vegetables, such as beets, sweet potatoes, parsnips, and onions, contain fructose, usually in combination with glucose in the form of sucrose. Fructose is also derived from the digestion of granulated table sugar (sucrose), a disaccharide consisting of glucose and fructose.
Crystalline fructose and high-fructose corn syrup are often mistakenly confused as the same product. The former is produced from a fructose-enriched corn syrup which results in a finished product of at least 98% fructose. The latter is usually supplied as a mixture of nearly equal amounts of fructose and glucose.
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