Fructose use in clinical nutrition: metabolic effects and potential consequences

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Purpose of review

The current article presents recent findings on the metabolic effects of fructose.

Recent findings

Fructose has always been considered as a simple ‘caloric’ hexose only metabolized by splanchnic tissues. Nevertheless, there is growing evidence that fructose acts as a second messenger and induces effects throughout the human body.


Recent discoveries made possible with the evolution of technology have highlighted that fructose induces pleiotropic effects on different tissues. The fact that all these tissues express the specific fructose carrier GLUT5 let us reconsider that fructose is not only a caloric hexose, but could also be a potential actor of some behaviors and metabolic pathways. The physiological relevance of fructose as a metabolic driver is pertinent regarding recent scientific literature.

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