Pumpkin seeds are a good source of healthy oils, magnesium, and other nutrients that enhance the health of the heart, bones, and other functions. The fatty acids in pumpkin seeds contain a range of beneficial nutrients, such as sterols, squalene, and tocopherols. Pumpkin seeds contain omega-3 and omega-6 fatty acids, antioxidants, and fiber. This combination has benefits for both the heart and liver. The fiber in pumpkin seeds helps lower the total amount of cholesterol in the blood and decrease the risk of heart disease. Pumpkin seed oil has a high content of vitamin E and other antioxidants.