Lemons are a rich source of vitamin C, providing 64% of the Daily Value in a 100 g serving. Lemons contain numerous phytochemicals, including polyphenols, terpenes, and tannins. As with other citrus fruits, they have significant concentrations of citric acid (about 47 gl in juice).Today, the majority of all Lemon produced comes from India, Indonesia, and other Asian countries. Asian farmers still account for 87% of the world's total Lemon production