1Better Absorption: Simply put, research is showing that krill oil is better absorbed by the body than fish oil. The omega-3 fatty acids from krill are released into the bloodstream and then into the cells at a more efficient rate. As a result, you might be able to take less (smaller, easier to swallow pills) and still enjoy the same heart health benefits of fish oil.
2Astaxanthin: Krill oil contains the carotenoid antioxidant astaxanthin. Fish oil does not. Astaxanthin is a high powered antioxidant with a molecular structure that makes it very effective at neutralizing free radicals. Dr. Mercola is a huge fan of astaxanthin and claims that it is one supplement he will not go without.
3More Sustainable: With concerns about overfishing ever-present, sustainability is an important factor to consider. Promoting your personal health without putting the health of the environment or marine ecosystems in jeopardy is the best scenario for all. As it turns out, with krill being at the bottom of the food chain (where fish get their omega-3 intake), these tiny shrimp-like creatures are the more sustainable source of EPA and DHA fatty acids.