A new study recently published in the journal Cell shows a genetic link to having a sweet tooth, but this sweet tooth gene comes with a nice twist: it causes a slight decreased in fat mass.
I may have to dub this the ‘not fair!’ gene variant since I don’t have it.
The gene in question is FGF21, which codes for a hormone that is created in the liver. In addition to stimulating adipocytes to uptake glucose, FGF21 also is involved in signaling in the hypothalamus to suppress sugar intake and alcohol consumption. [ref]
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