You’ve probably seen bottles of fish oil supplements in your pharmacy or grocery store, but you can get the same healthy boost from going straight to the source, as well. Oily fish such as salmon, sardines, and tuna are fish that have fatty oils throughout the fillets and in the area around the gut, rather than just in just the liver. Experts say eating one to two servings of these fish per week can reduce inflammation and also decrease your risk for heart disease and sudden death.