Some baristas in Lower Manhattan have begun offering grapefruit slices as an add-on to morning coffee this week. The practice is based on the claim that grapefruit chemicals can slow the breakdown of caffeine, extending its effects. However, medical professionals warn that grapefruit can dangerously interact with common medications, including those for blood pressure and cholesterol.
Dr. Linda Han, a clinical pharmacologist at NYU Langone, said on Friday that even small amounts of grapefruit may alter how the body processes certain drugs. She described the trend as risky for customers who may be unaware of their prescriptions’ sensitivity.
At a SoHo café on Thursday morning, a sign advertising “Grapefruit shot with espresso” drew several curious customers. Employees said the pairing was inspired by social media posts circulating earlier this month. Most customers said they were unaware of the potential health risks.
The Food and Drug Administration has advised for years that grapefruit can interfere with dozens of medications. For now, local health officials urge restaurant owners to inform customers about possible side effects. As outdoor seating fills up with the first wave of summer regulars, some café managers say they will review their menus in light of the warnings.