Overview

• New research presented at Digestive Disease Week 2025 indicates that gluten transfer during kissing is minimal and typically below the 20 ppm safety threshold for people with coeliac disease.
• The study involved 10 couples, each including one partner with coeliac disease, with tests conducted after gluten consumption and kissing scenarios lasting up to one minute.
• Drinking water before kissing significantly reduced gluten presence in saliva, with no cases exceeding the safety threshold in these instances.
• None of the participants with coeliac disease reported symptoms following the kissing experiments, even when trace amounts of gluten were detected.
• While the findings are preliminary and await peer review, researchers emphasize that highly sensitive individuals may still need to exercise caution.