Fish oil pills are marketed as dietary supplements that provide you with a rich source of Omega-3 fatty acids. These dietary supplements are made from fish, such as tuna or salmon, mixed with vitamins, calcium and vitamins, according to MedlinePlus, a service of the National Institutes of Health. Fish oil pills can be used to lower cholesterol and triglyceride levels, prevent heart disease and reduce the symptoms of rheumatoid arthritis. However, fish oil pills can have side effects that you should be aware of prior to taking the supplements.
Gastrointestinal Distress
One of the most common side effects of fish oil pills is gastrointestinal distress, reports an article in "American Family Physician." Gastrointestinal distress can present as nausea, a sense of bloating or frequent belching. If you experience these symptoms after taking fish oil supplements, consult your doctor. You may be advised to stop taking the supplements, or you may be given medication to lessen the gastrointestinal distress.
Increased Risk of Bleeding
Fish oil pills contain large amounts of Omega-3 fatty acids. These acids give fish oil most of its beneficial effects. However, Omega-3 fatty acids can increase your risk of bleeding, MayoClinic.com explains. At doses greater than 3g per day, Omega-3 fatty acids can cause you to bleed more easily than normal. This increased potential for bleeding may be due to fish oil's effect on your body's coagulation chemicals.
Allergic Response
If you are allergic to fish or other types of seafood, you may experience an allergy to fish oil pills, MedlinePlus notes. Symptoms of an allergic response include swelling of the face or mouth, rash and difficulty breathing. If you experience these symptoms, seek out medical attention, especially if you have difficulty breathing. Your doctor may recommend that you avoid fish oil supplements if you have a history of allergy to seafood.
Difficulty Controlling Blood Sugar
Diabetic patients are advised to focus on their blood sugar levels and monitor them religiously. High doses of fish oil can make it difficult for you to control your blood sugar effectively, according to MedlinePlus. Therefore, if you have diabetes, consult your doctor before taking any supplements containing Omega-3 fatty acids.
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