The common lemon has many purposes above and beyond the culinary. The volatile oils of the skin are antibacterial, lower blood pressure, aid digestive problems and sore throats. The fragrance has been shown to improve moods.
Sunflower seeds are a good source of protein, fibre, zinc and iron, and are low in saturated fat. They're also a rich in alpha-tocopherols, which have been shown effective in reducing the risk of certain types of cancers, including bladder cancer.