What Are The Effects Of Cod Oil Pills?

Cod liver oil contains high concentrations of omega-3 fatty acids, as well as vitamins A and D. These generally offer health benefits. However, like many supplements, cod liver oil may trigger negative effects in some people. It can also lead to problems if taken in extremely high doses. Information from the government's MedlinePlus website suggests taking no more than 3 g of cod liver oil per day.

Joints

Anecdotal evidence has long linked the effects of cod liver oil with healthier, more supple joints. Some clinical studies appear to back this idea up. In particular, people suffering from rheumatoid arthritis may benefit from taking cod liver oil. For example, in a 2008 study published in "Rheumatology," scientists found that 39 percent of patients taking cod liver oil could reduce their daily dose of anti-inflammatory drugs. Cod liver oil appears to show some effect in reducing the pain and discomfort of rheumatism -- though it isn't an absolute cure.

Heart

Omega-3 fatty acids can lower the risk of heart disease and sudden cardiac death. The fatty acids may remove harmful high-density lipids and strengthen cell membranes in the body. Cod liver oil is made up of around 16 percent EPA and DHA fatty acids -- two of the most important omega-3 substances. The American Heart Association recommends taking between 250 mg and 500 mg of omega-3 fatty acids per day. That means that two 1-gram cod liver oil capsules include enough omega-3 to match your suggested daily amount.

Sickness

Some people get a bad gastrointestinal reaction to fish oils, including cod liver oil. Effects might include a queasy feeling, occasional belching, fishy breath or indigestion. In some cases, cod liver oil might trigger mild symptoms of an allergic reaction, such as rashes on the skin or even a bleeding nose. MedlinePlus guidelines suggest that taking a cod liver oil pill along with a meal helps put less strain on the gut and helps to lower the risk of negative effects.

Considerations

Some medication, such as birth control pills, may reduce the efficacy of the cod liver oil. In the case of medication to lower blood pressure, fish oils may work to enhance the effectiveness of the drug. That could lead to your blood pressure going down too far. Talk to your doctor about taking cod liver oil supplements, especially if you take other medications.