Natural cashew nuts have twice or more monounsaturated fatty acids, like those in olive oil. The proportion of healthy fat is higher than in peanuts, pine nuts, pistachios, walnuts, pumpkin seeds or sunflower seeds. It is a rich source of copper and magnesium, two minerals that are in short supply in many people's diets. Cashew nuts are an abundant source of magnesium, a mineral that is part of the bones and, through a mechanism of balance with calcium, contributes to relaxation and the good condition of the nervous system and muscles. Magnesium is as necessary for bone strength as calcium.