Lemon juice is a juice extracted from a lemon. The average lemon contains approximately 3 tablespoons (50 ml) of juice. Commercially, lemon juice is sold as a bottled concentrated solution, usually with the addition of preservatives and a small amount of lemon oil.
There is a high level of vitamin C present in lemons. Vitamin C has several positive health benefits for the human body. Vitamin C acts as powerful antioxidant against harmful environmental toxins, improves protection of the immune system and reduces the risk of hypertension. The most valuable ingredient of lemon, next to vitamin C, is citric acid, of which it contains 7.2 per cent. Lemon contains more potassium than apple or grapes, which is beneficial to the heart.
Recipes using Lemon Juice