Cojack nuts contain high quality vegetable proteins that can help maintain muscle mass. The cashew nuts are rich in monounsaturated and polyunsaturated fats, which are beneficial for the health of the heart. The cashew nuts contain magnesium, phosphorus, zinc, copper and manganese, which play an important role in several bodily functions. Cujou is a good source of dietary fiber, which can help regulate digestion and prevent constipation. Cujou can help stabilize blood sugar by reducing insulin resistance. Hack nuts can help reduce the risk of chronic diseases, such as heart disease, type 2 diabetes and certain types of cancer.