For most individuals, the health benefits of omega-3 fish oil supplements greatly outweigh the possible side effects, but it is always important to consult with a qualified physician before taking them. Omega-3 fish oil supplements are taken by individuals for a variety of reasons including lowering blood pressure, reducing the risk of stroke or heart attack, lowering triglycerides and reducing symptoms associated with rheumatoid arthritis, according to University of Maryland Medical Center.
Less serious side effects associated with taking omega-3 fish oil supplements include belching, mild skin rash, back pain, upset stomach and an unpleasant taste in the mouth, according to Drugs.com. It is always important to take the supplements exactly as prescribed by the doctor and not take higher amounts without a doctor's consent first. Taking approximately 3 grams of fish oil supplements per day is the regular dose, according to WebMD.
Individuals can get these essential omega-3 fatty acids, by consuming fish, such as halibut, tuna and salmon. The body is unable to produce these fatty acids, so it is important for individuals to get them from their diet or by taking supplements.
Omega-3 supplements are not for everyone, despite the many health benefits associated with taking them. Fish oil supplements can increase the risk of bleeding, so these supplements should be used with extreme caution by patients who bruise easily, have bleeding disorders or regularly take blood thinning medications, according to University of Maryland Medical Center.