Age-related macular degeneration (AMD) is a chronic disease that affects the central zone of the retina—the macula—and causes gradual loss of vision. It is the leading cause of sight loss among people aged over 50. Current treatments for AMD can only slow the progression of certain forms of this disease. For this reason, preventive strategies are of crucial importance. Risk factors that offer levers for action include a retinal insufficiency in long-chain omega-3 fatty acids; these lipids are supplied via the diet and notably from fish.