Marine organisms are a promising source of nutraceuticals that can provide health benefits. Compounds from seaweeds, algae, fish, and shellfish have anti-inflammatory, cholesterol-lowering, and antioxidant properties. Examples of marine-derived nutraceuticals include omega-3 fatty acids from fish oils, carotenoids and sterols from algae, and chitosan from shellfish shells. These compounds may help reduce the risk of diseases like cancer, cardiovascular disease, and diabetes. The market for marine nutraceuticals is growing as consumers increasingly seek healthy lifestyle and disease prevention options.