3. Cancer Protection
Lemons contain 22 anti-cancer compounds including limonene, an oil that has been shown to halt the growth of cancer tumors in animals. In addition, they also contain flavonol glycosides, which stop the division of cancer cells.
A 2005 study published in the Journal of Nutrition found that limonoids in citrus fruits protect cells from damage that can lead to cancer. Another study published in the Journal of Agriculture and Food Chemistry stated that limonoids can inhibit tumors in the mouth and stop the growth of cancer cells once a tumor has formed.