Scientists Have Discovered the First Temporary, Universal Taste Blocker

A team of scientists at the Monell Chemical Senses Center has discovered the first temporary, universal taste blocker effective in humans. Their research is published in the British Journal of Pharmacology.

“Remarkably, and unlike our experience with blockers of bitter taste receptors, the taste-nerve blocker we tested worked for every subject and every bitter compound we tested,” said first author Linda J. Flammer, PhD, Monell Senior Research Associate and Director of the Corporate Partners Program. “I have never seen this before.”

Past Efforts and the Novel Approach
Until now, efforts to block bitterness in foods and medicines have focused on finding blockers for bitter taste receptors on the tongue. Because different medications activate distinct sets of bitter taste receptors, targeting specific receptors may only suppress bitterness for certain, but not all, bitter-tasting compounds. “There is a clear need to develop bitter blockers that are able to suppress the bitterness of many medications,” said co-author Carol Christensen, PhD, Monell Alumnus Faculty Member. “Although humans have 25 different bitter receptors, our ongoing research suggests only a handful of bitter receptors may be responsible for most of the bitterness of medicines.”