Krill oil supplementation during a fasting diet helps to reduce the decline of muscle mass and strength, which is commonly associated with losing weight. We discuss the study’s findings with Line Johnsen, Ph.D., senior vice president of Human Health & Nutrition R&D at Aker BioMarine, who highlights several proposed mechanisms that might explain how krill oil supports muscle function. She also points to follow-up research on krill oil’s muscle health benefits in weight management and healthy aging.