Lemon – a fruit aged sub-tropical evergreen tree of citrus family, subfamily of oranges. Lemon contains citric acid, sugar, vitamin C, vitamin P, B, pectin, salt, iron, phosphorus, potassium, calcium and magnesium. Used fresh for squeezed juice, citric acid, etc. The external skin of the fruit, contain essential lemon oil that produces a particular aroma. Lemon enhances the body's defense during common colds and infectious diseases, as well as in the postoperative period. Especially useful in prevention of atherosclerosis, and to lower high blood pressure.