Can I Take Too Many Fish Oil Supplements?

Can I Take Too Many Fish Oil Supplements?
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Sold over-the-counter at most grocery and drugstores, fish oil supplements are one of the most common supplements consumed daily. Though a prescription is required for the omega-3 rich capsules, caution is still required when taking fish oil. Too much fish oil or having certain health conditions may cause negative side effects to occur. Before adding the popular supplement to your healthcare routine, talk to your medical doctor about the right amount of fish oil for you.

Dose Amount

Fish oil is routinely taken for heart-health benefits, according to the University of Maryland Medical Center. Fish oil decreases your risk of coronary heart disease, reduces triglyceride levels in the blood and keeps your cardiovascular system healthy. According to the American Heart Association, healthy adults without history of CHD receive enough fish oil through diet alone. The AHA suggests eating two 3.5 oz. of fatty fish per week if you are in good health. Eat fish such as tuna, salmon and herring -- all high in omega-3 fatty acids. If you do have a history of CHD, take 1 g of fish oil supplement daily or eat about one serving of fish daily. When attempting to lower your triglycerides, between 2 and 4 g of fish oil supplement is recommended daily, reports the AHA. Do not take more than 3 g of fish oil without medical supervision.

Large Dose Side Effects

Taking more than 3 g of fish oil supplement may lead to increased bleeding, warns MedlinePlus. You may notice your gums or nose bleeds more frequently. Blood may be seen in your urine. In severe, but rare instances you may suffer from a hemorrhagic stroke. The stroke occurs because the blood vessels in the brain rupture causing internal bleeding. Signs and symptoms of this dangerous situation include confusion, shortness of breath and difficulty speaking.

Contradictions

Don't take fish oil supplements if you have had heart defibrillator installed. According to Science Daily, fish oil may cause increased heart arrhythmias in patients with implants. Patients who suffer from severe heart rhythms are also encouraged to avoid the supplement. Patients who are allergic to seafood can suffer allergic reactions when taking the supplement.

Additional Warnings

Avoid combining fish oil supplements and anticoagulant medications such as warfarin and aspirin. Both decrease blood clots from forming and together greatly increase your risk of bleeding. Fish oil may also lower your blood pressure; however, your blood pressure may lower to dangerous levels when combining fish oil and antihypertensive medications. Avoid taking fish oil together with weight loss medication orlistat. Orlistat reduces cholesterol absorption in the body. Fish oil may cause the drug to become ineffective. MedlinePlus recommends waiting 2 hours between taking fish oil and orlistat.

References

Article reviewed by Jenna Marie Last updated on: Mar 17, 2011

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