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  1. Fish Oil Side Effects: Common, Severe, Long Term - Drugs.com

    Mar 6, 2025 · Learn about the side effects of Fish Oil (omega-3 polyunsaturated fatty acids), from common to rare, for consumers and healthcare professionals.

  2. 9 Little-Known Side Effects of Too Much Fish Oil - Healthline

    Feb 14, 2025 · This article will cover nine potential side effects of consuming too much fish oil or omega-3 fatty acids supplements.

  3. Fish oil - Mayo Clinic

    Aug 10, 2023 · Fish oil appears to contain almost no mercury, which can be a cause for concern in certain types of fish. While generally safe, getting too much fish oil can increase your risk of …

  4. 10 Potential Side Effects of Fish Oil - Verywell Health

    Dec 16, 2025 · Fish oil is among the most commonly used supplements for its purported health benefits, including its effects on heart health. Side effects are typical minimal but can range …

  5. 8 Unexpected Side Effects of Fish Oil - Health

    1 day ago · Fish oil is generally safe but can cause side effects such as bad breath, diarrhea, unpleasant aftertaste, heartburn, and reduced immune function.

  6. Fish Oil: Overview, Uses, Side Effects, Precautions ... - WebMD

    Learn more about Fish Oil uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Fish Oil.

  7. Fish oil side effects: How much is too much? - Medical News Today

    Jun 5, 2025 · Fish oil supplements may cause side effects such as an unpleasant smell and gastrointestinal symptoms. Limited evidence suggests it may also increase the risk of bleeding …