Aspirin's Clot-Prevention Ability Blunted by Dietary Fat
Aspirin 's ability to prevent potentially deadly blood clots may be hindered by elevated levels of fatty acids in the bloodstream, a new study suggests. It's common for doctors to prescribe aspirin as a blood thinner for patients at high risk of a heart attack. Aspirin inhibits the activity of the COX-1 enzyme, which plays a role in blood clot formation. It's known that free fatty acids -- released into the bloodstream during the breakdown of fat cells -- also inhibit COX-1 activity.