Cashew nuts is also known as kaju, Cashew Nuts is rich in protein, healthy fats and anti oxidants. Cashew nuts are rich in manganese, potassium, copper, iron, magnesium, zinc and selenium. Copper also is an essential part for many enzymes that help provide colour to the hair,Copper found in nuts is also good for hair, helping it remain bright and strong. Cashew Nuts are also a great source of proteins and antioxidants thereby helping your skin remain healthy and wrinkle free. It also helps in prevention of skin cancer.