6. Anticancer Properties
Lemon peel has salvestrol Q40 and limonene that have been associated with cancer prevention and treatment. D-limonene speeds up the death rate of mutated cells and helps in the inhibition of cancer cell propagation of gastric cancer in rats.
Flavonoids are another cancer-fighting substance found in the lemon peel that has been known to reduce the risk of breast and gastric cancers. Polymethoxyflavones (PMFs), citrus flavonoids, exhibit anticarcinogenic activity by blocking the metastasis cascade.