Moderate To Serious Side Effects Of Fish Oil 1. However, fish oil supplements can cause mild side effects, including: A fishy aftertaste; Bad breath; Heartburn, nausea or diarrhea; Rash; Taking high doses of fish oil supplements might increase the risk of bleeding and possibly increase the risk of stroke. Fish oil itself will clear from the body within a few days, so no worry about fish oil lingering in a bad way in the body. You may report side effects to FDA at 1-800-FDA-1088. 3. Before blaming the fish oil for the side effects that you experience, it is important to consider several influential factors. – Using enteric-coated fish oil pills can help delay absorption in the small intestine, reducing gas and fish burps. – Taking digestive enzymes with your fish … Omega-3 fatty acids are common in fish like salmon, flaxseed oil, nuts, and certain spices. In some people, fish oil supplements cause irregular heartbeats and chest pain. Factors that influence fish oil’s side effects. Let your physician know if you are taking a fish oil or omega-3 fatty acid supplement. Call your doctor for medical advice about side effects. 2. Yes, you may be absolutely terrified now that you have read the long list of possible negative fish oil side effects that may happen to you if you take the fish oil supplement. About 3% experience an unpleasant taste in their mouth. One of the problems today is that most supplement companies overcharge for their fish oil supplements. An irregular heartbeat can be extremely dangerous and lead to heart failure. If you are safely taking a cholesterol medicine, adding a fish oil or omega-3 fatty acid is safe. About 4% of people stop taking fish oil because of side effects. Chest Pain And Uneven Heartbeat. Although fish oil may seem like an easy way to improve your heart health, there are side effects associated with its use These appear to be dose-dependent, meaning that the higher dose you take, the more likely you will be to experience side effects. Possible Side Effects . Numerous studies have found that they can be good for a person’s heart and can help lower cholesterol. Atherosclerosis, heart disease, strokes, and peripheral vascular disease develop as a … Fish oil can cause side effects including belching, bad breath, heartburn, nausea, loose stools, rash, and nosebleeds. About 3% experience minor flu like symptoms. If you notice any negative fish oil side effects, stop taking the supplement immediately to avoid problems or complications. 1. – Choosing pharmaceutical grade fish oils that can provide higher purity levels can reduce possible side effects. mild skin rash. Less serious Fish Oil side effects may include: back pain; unusual or unpleasant taste in your mouth; upset stomach, belching; or. About 30% of people taking fish oil pills will experience one of the minor fish oil side effects. My mother, my father, my brother, my girlfriend, and I all take a high-quality omega-3 fish oil supplement on a daily basis. The best way to avoid these fish oil side effects is to use a high-quality and proven pure fish oil supplement. About 2% experience back pain. Fish Oil Side Effects: In Conclusion. About 8% experience an upset stomach. The study, published in the August 2019 issue of the British Medical Journal , found that taking fish oil supplements had no benefit in preventing or treating type 2 diabetes. When taken as recommended, fish oil supplements are generally considered safe. This is not a complete list of side effects and others may occur.