Discovery paves way for fructose tolerance test

Scientists have made a discovery that could lead to the development of a fructose tolerance test to complement glucose tests.

The team from Beth Israel Deaconess Medical Center in the US say an increased blood level of the hormone Fibroblast Growth Factor 21 (FGF21) is a reliable predictor of altered fructose metabolism.

This is because levels increase acutely and robustly after fructose ingestion, they report in the journal Molecular Metabolism.