Omega Krill™ is "essential" because the body needs fatty acids for the production and rebuilding of new cells while working as chemical messengers to the entire body. The body does not make essential fatty acids, that is why it is so important to receive them through diet or, in this case, a well formulated dietary supplement. Essential fatty acids found in Omega Krill™ may be beneficial for the cardiovascular system, for lowering cholesterol and triglyserides, even decreasing the risk of heart disease, and improves joint pain & stiffness. What is Krill Oil ?---Krill are shrimp-like crustaceans that are approximately up to 6 centimeters long. They live in the ocean, where they feed mainly on phytoplankton. They're near the bottom of the food chain and are eaten by whales, seals, penguins, squid and fish. Commercial fishing of krill occurs along the coasts of Canada and Japan. Krill that are caught are used for aquaculture and aquarium feeds, sport fishing bait or they are eaten as food in countries like Japan. Krill oil is also used in nutritional supplements like Omega Krill™. Krill oil contains omega-3 fatty acids, which is the main reason it's becoming popular as a nutritional supplement. Another reason krill oil is becoming popular is because it contains an antioxidant called astaxanthin. The algae that krill eat produce the bright red pigment astaxanthin that gives krill and other crustaceans, such as lobster and shrimp, their reddish-pink color. Antioxidants protect our body cells from damage from free radicals, unstable substances that are thought to contribute to certain chronic diseases. Unlike many other antioxidants, astaxanthin crosses the blood-brain barrier, where it could theoretically protect the eye, brain and central nervous system from free radical damage. Why Do People Use Krill Oil?----People use krill oil for the same reasons they use fish oil, flax oil or other omega-3 fatty acids. Unlike fish oil, krill oil doesn't cause fishy burps or an aftertaste, a common side effect of fish oil. Also, krill oil contains higher amounts of astaxanthin than fish oil. Here are some specific conditions for which it's used. Cholesterol: Krill oil is being studied as a natural remedy for high cholesterol. In one study, 120 people were given krill oil, fish oil or a placebo. Krill oil reduced LDL (commonly referred to as "bad") cholesterol by 34% and increased HDL ("good") cholesterol by 43.5% compared to the placebo. In comparison, fish oil reduced LDL cholesterol by 4.6% and increased HDL cholesterol by 4.2%. Krill also has been known to lower triglycerides. Premenstrual syndrome: Preliminary research suggests krill oil may help reduce symptoms of premenstrual syndrome (PMS), however, more research is needed. Arthritis: A study in the Journal of the American College of Nutrition examined krill oil, 300 mg daily (Omega Krill™ contains 500mg) compared to a placebo and found that krill oil was effective at reducing arthritis symptoms and inflammation.