Fish oil contains high levels of omega-3 fatty acids that reduce cholesterol and may help with the prevention of cardiovascular disorders. An alternative supplement is available in the form of krill oil that conveys similar benefits but reduces the occurrence of side effects common with fish oil. As with any supplement, talk to your doctor before beginning a natural therapy regimen.
Fish Oil Positives
Fish oil contains large quantities of omega-3 fatty acids, docosahexaenoic acid, or DHA and eicosapentaenoic acid, or EPA, that reduce cholesterol levels and help to prevent heart disease. According to the University of Maryland Medical Center, fish oil fights inflammation and reduces symptoms of PMS and may have some benefit in treating mental disorders, such as bipolar disorder and depression, though results are mixed.
Fish Oil Negatives
Fish oil is derived from meaty, cold-water fish such as salmon, tuna and halibut. Fish oil supplements often cause side effects such as indigestion and belching. Some patients experience a fishy aftertaste or notice that they have a fishy odor to the breath. Fish oil interferes with some medications such as those for diabetes. Though many health experts advocate the consumption of fish rather than the use of supplements, there may be some concern about the evels of mercury present in some types of ocean fish such as tuna. In addition, those who are allergic to fish cannot eat it and may not be able to take fish oil supplements.
Krill Oil Positives
Krill is a sea animal that resembles a very small shrimp. It is the preferred food of some whales and other large sea life. Krill oil may have levels of omega-3 fatty acids, similar to those of fish oil, but the content of the oil is slightly different and may be better absorbed. A study published in "The Alternative Medicine Review" showed that krill oil was more effective than fish oil at reducing bad cholesterol and raising good cholesterol. Some alternative health professionals also believe that krill oil may be more effective at treating inflammation and symptoms of PMS, though studies are limited.
Krill Oil Negatives
As krill populations thrive in icy water, there is some speculation that populations of krill may be declining worldwide due to global warming. In addition, people with shellfish or shrimp allergy may not tolerate the supplement. Use of krill oil has not been as well studied as fish oil and though some positive results have been shown, less is known about the supplement. It has not been well determined, what side effects or drug interactions may occur with the regular use of krill oil. Consult your physician before beginning any supplement.
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