2. Fish
(such as salmon, sardines, and mackerel) are packed with omega-3 fatty acids that fight inflammation. They also lower blood pressure, decrease triglyceride levels, and slow the growth of atherosclerotic plaque. People who eat fish regularly have lower rates of Alzheimer’s disease and cardiovascular disease. A Harvard study found that men who ate fish more than three times a week cut their chances of developing advanced prostate cancer by 40 percent.