Directly contained in krill oil are mainly omega-3 fatty acids, which are classified as very healthy and have an ideal ratio to the omega-6 fatty acids of 15:1, considered medically to be responsible for the beneficial effects. Neurotransmitters in the body, which are responsible for the progression of inflammation to a considerable extent, are inhibited.
Krill oil further contains about 3% oleic acid, which is said to also have a health-promoting effect. Astaxanthin, an antioxidant, is found in krill oil as well. The resulting antioxidative effect is 6,000 times stronger than that of vitamin C.