Photo Credit татьяна русанова/iStock/Getty Images. Inflammation in the body is connected to heart disease, arthritis and other chronic diseases. Signs of inflammation include redness, heat, swelling, pain and dysfunction of the affected organs. By eating a diet rich in fresh fruits and vegetables, whole grains, nuts and seeds, lean proteins, and low-fat dairy, you can reduce inflammation in your body naturally. Foods With Anti-Inflammatory Properties. Foods that contain high levels of omega-3 and omega-6 fatty acids can help reduce inflammation; these include tuna, salmon, flaxseeds and oil, legumes, and green leafy vegetables.