Cashews are rich in iron, phosphorus, selenium, magnesium and zinc. They are also good sources of phytochemicals and antioxidants. Rich in protein, cashew nuts are cholesterol free and are full of monounsaturated fats. Cashew nuts boast a high amount of dietary fiber, which has a good effect on weight management, but only when moderately eaten. The magnesium content in cashew nuts is beneficial for promoting bone growth. Cashews are rich in antioxidants which help fight free radical damage. Cashew nuts are also high in copper, which is very good for flexibility in bones, joints and blood vessels.