�y��vlog

Some other phenolics had varying effects, but quercetin glucuronide was the winner.

When your body absorbs quercetin from food or wine, most is converted to glucuronide by the liver in order to quickly eliminate it from the body.

Our enzyme tests suggest that quercetin glucuronide disrupts your body's metabolism of alcohol.

"When it gets in your bloodstream, your body converts it to a different form called quercetin glucuronide," said wine chemist and corresponding author Andrew Waterhouse, professor emeritus with the UC Davis Department of Viticulture and Enology.

Similarly, the gut microbiota can indirectly determine whether the widely used analgesic paracetamol will be metabolized to paracetamol sulphate or paracetamol glucuronide, potentially altering its efficacy and toxicity.