fruc·​tose | \ ˈfrək-ˌtōs How to pronounce fructose (audio) , ˈfrük-, ˈfru̇k- How to pronounce fructose (audio) , -ˌtōz How to pronounce fructose (audio) \

Definition of fructose

1 : a crystalline sugar C6H12O6 sweeter and more soluble than glucose
2 : the very sweet levorotatory d-form of fructose that occurs especially in fruit juices and honey

called also fruit sugar, levulose

Examples of fructose in a Sentence

Recent Examples on the Web

But there’s no science to say that fructose is a worse monosaccharide for the body than any other, Tewksbury says. Carolyn L. Todd, SELF, "Can Our Bodies Even Tell the Difference Between Naturally Occurring and Added Sugars?," 24 June 2019 The second is disaccharides, which are just two of these single sugar molecules linked together: sucrose, or table sugar (glucose + fructose); lactose, or milk sugar (glucose + galactose); and maltose, or malt sugar (glucose + glucose). Carolyn L. Todd, SELF, "Can Our Bodies Even Tell the Difference Between Naturally Occurring and Added Sugars?," 24 June 2019 While there, the nectar mixes with protein and enzymes, which breaks the nectar down from sucrose into glucose and fructose. Fox News, "Everything you need to know about honey," 6 Oct. 2015 Because allulose is essentially dietary fiber made from converted corn fructose, the body doesn’t effectively break down the ingredient. Jean Nick, Good Housekeeping, "How Safe Is The Newest "Natural" Sugar Substitute?," 16 Sep. 2015 The fructose-enriching aspects of herbicides may make sweetcorn even sweeter, but that could be detrimental to health because fructose is increasingly being implicated in a number of illnesses, such as fatty-liver disease and diabetes. The Economist, "For better or worseSpraying herbicides changes the flavour and nutritional value of crops," 1 Mar. 2018 Though fructose is usually toxic, people metabolize it in the kidney and liver. Rachel Brown, National Geographic, "This Surprising Rodent Can Survive 18 Minutes Without Oxygen," 20 Apr. 2017 Roughly half of the calories in bananas come from equal amounts of glucose and fructose, and will be quickly absorbed. Tom Taylor,, "The Best Energy Gels and Bars for Running and Endurance Training," 16 Aug. 2017 But still, fruit (even whole or dried) breaks down into two types of sugar: glucose and fructose. Elizabeth Varnell, Vogue, "The Healthiest Way to Make Your Morning Juice—Hold the Sugar," 15 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fructose.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fructose

circa 1864, in the meaning defined at sense 1

History and Etymology for fructose

International Scientific Vocabulary fruct- (from Latin fructus fruit) + -ose entry 2

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Statistics for fructose

Last Updated

19 Jul 2019

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Time Traveler for fructose

The first known use of fructose was circa 1864

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English Language Learners Definition of fructose

: a very sweet kind of sugar that is found in fruit juices and honey


fruc·​tose | \ ˈfrək-ˌtōs How to pronounce fructose (audio) , ˈfrük- How to pronounce fructose (audio) , ˈfru̇k- How to pronounce fructose (audio) , -ˌtōz\

Medical Definition of fructose

1 : an optically active sugar C6H12O6 that differs from glucose in having a ketonic rather than an aldehydic carbonyl group
2 : the very sweet soluble levorotatory D-form of fructose that occurs especially in fruit juices and honey

called also levulose

More from Merriam-Webster on fructose

Rhyming Dictionary: Words that rhyme with fructose Encyclopedia article about fructose

Comments on fructose

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to shake or wave menacingly

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