Fish and marine oils are supplements derived from fatty fish or algae that contain omega-3 fatty acids, compounds your body cannot make on its own. People take these supplements for various reasons—some want to support heart health, others are interested in brain function or joint comfort. This category covers what these oils actually are, how they differ from each other, and what the research shows about their potential effects.
The articles here answer practical questions like which types of fish oil exist and where they come from, how much people typically take, what side effects might occur, and how they interact with medications or other supplements. You'll also learn about alternatives if fish oil isn't right for you, and how to think through whether adding one to your routine makes sense for your situation.