Walnuts are an excellent source of anti-inflammatory omega-3 essential fatty acids. They are also rich in antioxidants, including being a very good source of manganese and copper. Walnuts are also a good source of molybdenum, vitamin E, B-complex vitamins, ellagitannins, catechin, and melatonin. Many other minerals are provided by walnuts in valuable amounts. These minerals include calcium, chromium, iron, magnesium, phosphorus, potassium, selenium, vanadium, and zinc.

Some of the health benefits of walnuts include a reduction of bad cholesterol in the body, an improvement in metabolism, and control of diabetes. They also good for anti-inflammatory properties, aid in weight management, and help as a mood booster. They are also believed to slow down the spread of cancer.