Studies link the consumption of sunflower seeds to a number of health benefits, including lowering your risk of developing diseases like high blood pressure or heart disease. They also contain nutrients that can support your immune system and boost your energy levels. It’s used as a source of polyunsaturated fat in the diet. People use sunflower oil for high cholesterol and preventing heart disease. It is also used for high blood pressure, eczema, dry mouth, dry skin, and many other conditions, but there is no good scientific evidence to support these uses.