Can omega 3 supplements cause excessive bleeding, especially when combined with blood‐thinning drugs?

Contrary to previous thinking, such concerns are unfounded. An interaction with anticlotting medication (anticoagulants, such as warfarin, Low Molecular Heparin and Heparin) is theoretically possible, but recent research has found no significant risk, even at high doses. People taking anticlotting drugs should be monitored as usual by their doctors. Similarly, you needn’t worry about interactions with aspirin, which also has an anti‐clotting effect. Indeed, the American Heart Association advises low‐dose aspirin and omega‐3s for people with heart disease.