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Fructose (/ ˈ f r ʌ k t oʊ s,-oʊ z /), or fruit sugar, is a ketonic simple sugar found in many plants, where it is often bonded to glucose to form the disaccharide sucrose.It is one of the three dietary monosaccharides, along with glucose and galactose, that are absorbed by the gut directly into the blood of the portal vein during digestion.
[2] [11] It is a C3 epimer of fructose. [2] Fructose can be converted to allulose by the enzymes D-tagatose 3-epimerase (EC 5.1.3.31) and/or D-psicose 3-epimerase (EC 5.1.3.30), which has allowed for mass production of allulose. [2] The compound is found naturally in trace amounts in wheat, figs, raisins, maple syrup, and molasses.
It is also present in the form of refined sugars including granulated sugars (white crystalline table sugar, brown sugar, confectioner's sugar, and turbinado sugar), refined crystalline fructose, as high fructose corn syrups as well as in honey. About 10% of the calories contained in the Western diet are supplied by fructose (approximately 55 g ...
Whether the sugar comes from table sugar (sucrose) or high fructose corn syrup, too much can harm your health. Most of our healthiest jams and jellies have less than 6 grams of added sugar per ...
BY CANDICE CHOI AP FOOD INDUSTRY WRITER NEW YORK (AP) -- Fans of Vitaminwater are demanding that parent company Coca-Cola drop a new formula that uses stevia, a low-calorie sweetener known for its ...
Pure, White and Deadly is a 1972 book by John Yudkin, a British nutritionist and former Chair of Nutrition at Queen Elizabeth College, London. [1] Published in New York, it was the first publication by a scientist to anticipate the adverse health effects, especially in relation to obesity and heart disease, of the public's increased sugar consumption.
In the United States, added sugars may include sucrose or high-fructose corn syrup, both primarily composed of about half glucose and half fructose. [7] Other types of added sugar ingredients include beet and cane sugars, malt syrup, maple syrup, pancake syrup, fructose sweetener, liquid fructose, fruit juice concentrate, honey, and molasses.
Fructose malabsorption, formerly named dietary fructose intolerance (DFI), is a digestive disorder [1] in which absorption of fructose is impaired by deficient fructose carriers in the small intestine's enterocytes. This results in an increased concentration of fructose. Intolerance to fructose was first identified and reported in 1956. [2]