What is the side effects of fish oil?

patients who are being treated with blood-thinning medications should not take omega-3 fatty acid supplements without seeking the advice of their physicians. Excessive bleeding could result. Omega-3 fatty acid is good in reducing inflammation within the body, as well as in the blood vessels, in the joints etc. However, omega-3 supplements can cause the blood to become thiner and this will cause excess bleeding,expecially if a person is taking anticoagulant drugs.