Walnuts are a great source of alpha-linolenic acid (ALA), an omega-3 fatty acid that is important for reducing inflammation. In fact, it is the only nut significantly high in these omega-3 fatty acids. Their anti-inflammatory compounds may reduce the risk of heart disease.( Avocado Besides unsaturated fats, avocado is high in fiber and vitamins C, E and K. One 7-ounce (201-gram) avocado provides 41% of the daily value (DV) of folate, which helps produce healthy red blood cells. It also provides 14% of the DV of magnesium, which helps regulate blood sugar levels and blood pressure)