Krill oil contains higher proportions of Omega-3 fatty acids than fish oil and is prepared directly from krill rather than requiring extraction from fish. It is known to benefit health in significantly more areas than fish oil, such as lowering cholesterol, aiding vision and memory, and relieving bone, joint, and age-related conditions. Krill oil is considered the best supplement irrespective of age due to its ability to improve life in many ways, and ongoing research may reveal additional benefits.