The omega-3 fats EPA and DHA are found in both krill oil and fish oil. However, some data shows that krill oil fats may be simpler for the body to utilize than fish oil fats because most omega-3 fats in fish oil are stored as triglycerides. However, a significant part of the omega-3 fats in krill oil can be present in the form of molecules known as phospholipids, which may be simpler to absorb into circulation. A few studies revealed that krill oil was more successful than fish oil at increasing omega-3 levels, and it was suggested that this was due to their different types of omega-3 fats.

Another research compared the quantities of EPA and DHA in krill oil and fish oil and discovered that both oils were equally efficient in increasing omega-3 levels in the blood. More study is required to evaluate whether krill oil is a more effective, bioavailable source of omega-3 fatty acids than fish oil.

Omega-3 fatty acids, such as those present in krill oil, have been demonstrated to have anti-inflammatory properties in the body. In fact, because it appears to be easier for the body to utilize, krill oil may be even more effective at combating inflammation than other marine omega-3 sources. Furthermore, krill oil includes astaxanthin, a pink-orange pigment with anti-inflammatory and antioxidant properties. A few research have been conducted to investigate the particular effects of krill oil on inflammation. When dangerous bacteria were given to human intestinal cells in a test tube, the synthesis of inflammation-causing chemicals was inhibited.

A study of 25 participants with slightly elevated blood fat levels discovered that consuming 1,000 mg of krill oil daily reduced an inflammatory marker even more efficiently than taking 2,000 mg of pure omega-3s daily. In addition, a study of 90 persons with chronic inflammation discovered that consuming 300 mg of krill oil daily reduced an inflammatory marker by up to 30% after one month. Although there has only been a little research on krill oil and inflammation, they have yielded potentially favorable outcomes.

Because krill oil appears to help reduce inflammation, it may also aid with arthritic symptoms and joint discomfort, which are frequently caused by inflammation. In fact, research that discovered krill oil dramatically lowered an inflammatory marker also discovered that krill oil reduced stiffness, functional impairment, and pain in individuals with rheumatoid or osteoarthritic arthritis. A second, modest but well-designed research of 50 people with minor knee pain showed that consuming krill oil for 30 days decreased discomfort when sleeping and standing. It also gave them more range of motion.

In addition, researchers investigated the effects of krill oil in arthritis-prone rats. The mice who consumed krill oil had lower arthritis scores, less edema, and fewer inflammatory cells in their joints. While further research is needed to back up these findings, krill oil looks to offer promising promise as a supplementary therapy for arthritis and joint pain.

Omega-3 fats, notably DHA and EPA, are thought to be heart-healthy. Fish oil has been found in studies to enhance blood lipid levels, and krill oil looks to be useful as well. According to research, it may be especially efficient at lowering triglycerides and other blood lipids. In one research, the effects of krill oil and pure omega-3s on cholesterol and triglyceride levels were studied. Only krill oil increased "good" high-density lipoprotein cholesterol (HDL). Even though the dosage was substantially smaller, it was more successful in decreasing an inflammatory marker. Pure omega-3s, on the other hand, was more successful in lowering triglycerides.

According to a recent assessment of seven trials, krill oil is effective at lowering "bad" LDL cholesterol and triglycerides, and may also improve "good" HDL cholesterol. Another research compared krill oil to olive oil and discovered that krill oil dramatically improved insulin resistance scores as well as blood vessel lining function. More long-term research is required to determine how krill oil influences the risk of heart disease. However, based on the data thus far, it appears to be beneficial in improving certain recognized risk factors.

Consuming omega-3 fats may help reduce pain and inflammation in general. Several studies have shown that taking omega-3 or fish oil supplements can help reduce period pain and PMS symptoms, in some cases enough to reduce the usage of pain medication.

Krill oil, which includes the same sorts of omega-3 fats, looks to be equally as helpful. In one study, the benefits of krill oil and fish oil were examined in women with PMS. While both supplements resulted in statistically significant reductions in symptoms, women receiving krill oil required considerably less pain medication than women taking fish oil, according to the research. This study reveals that krill oil may be as helpful as other omega-3 fat sources for alleviating PMS symptoms.