In the category of nuts, one of the most nutritious and healthy products is sunflower seeds. This is due to their high content of unsaturated fatty acids. Of their total fat content, approximately 70% is polyunsaturated, 20% is monounsaturated and only 10% is saturated. Unsaturated fatty acids are beneficial to the human body and are considered essential for proper nutrition. They are rich in protein and fibre. A handful of sunflower seeds yields 85 calories (kcal).