Pine nuts are the edibles seeds of certain varieties of pines, such as the domestic pine. Widely used in preparations such as pesto alla Genovese sauce or castagnaccio, a typical chestnut flour cake eaten in some regions in Italy, the pine nuts contain vitamins such as vitamin A, B, C and E, and mineral salts, such as phosphorous, calcium, zinc, magnesium and potassium. The antioxidants of the pine nuts help against aging processes and to protect the cardiovascular system, while the lutein, also contained in pine nuts, helps to protect the eyesight. These little seeds provide energy and are calorie-rich, this makes them an ideal snack in case of physical and mental efforts, or convalescence, but, for the same reason , it is better not to exceed with them in case of overweight or obesity. The pine nuts are calorie-rich seeds because of the high content of monounsatured fatty acids, such as the oleic acid, that help lower bad cholesterol. In addition to this pine nuts are helpful to relieve muscular and menstrual cramps, they strengthen bones and the immune system.