Why Science is Sweet on Lemon Essential Oil as a Cancer Fighter

By Ty Bollinger, from The Truth About Cancer

A citrusy delight, lemon is a summer season favorite that typifies what it means to be a child — think neighborhood lemonade stands and warm, balmy days at the pool. But more than just a refreshing treat, lemon also contains a rich oil that science suggests could protect against certain types of cancer.
Native to the Middle East, lemon (or at least it’s modern variation), has gained considerable attention in scientific literature. It’s been used to make everything from simple lemonade beverages and lemon liquors to vinegar and fermented healing elixirs. But perhaps its greatest potential is in essential oil form, which is where lemon really shines.
Can Lemon Halt Cervical Cancer?
Long recognized as a remedy for cold symptoms and other respiratory ailments due to its high vitamin C and antioxidant content, lemon has more recently been identified as possessing a wealth of other nutrients that work together to target cancer cells. A 2010 review published in the Journal of Medicinal Plants Researchidentified essential oil of lemon as possessing the capacity to stop human cervical cancer cells in their tracks.
Using hydrodistillation, Chinese scientists extracted lemon essential oil and tested it on a series of human cervical adenocarcinoma cell lines. They found that the oil not only blocked the cancer cell lines from spreading, but also inhibited oxidizing free radicals from harming healthy cells.
Lemon Essential Oil Offers Multimodal Benefits Against Cancer
A larger review of plant extracts and the various roles they play in preventing and treating disease revealed that essential oils, including that of the lemon, acts in multiple ways to target cancer. Lemon and other essential oils, a research team found, utilize multiple pathways and mechanisms to thwart cancer, including through cell cycle arrest, apoptosis (cell suicide), increased levels of reactive oxygen and nitrogen species, and anti-metastasis and anti-angiogenic (stopping tumors from growing blood vessels) activities.
A mixture of lemon essential oil combined with eucalyptus, melaleuca, lemongrass, clove leaf, and thyme, in a 40 percent ethanol base, demonstrated anti-tumorigenic effects when administered to patients with metastatic tumorigenic ulcers. Cancer patients have also found relief from pain, anxiety, nausea, and vomiting by using lemon and other essential oils.
How Your Nose Can Help Stop the Spread of Cancer
Another study published earlier this year in the journal Archives of Biochemistry and Biophysics reveals that citronella terpenes in lemon essential oil stop the growth of cancers, including those of the liver, through olfactory activation. In other words, citronella terpenes activate certain smell receptors located throughout the body in order to prevent the spread of cancer.
“Terpenes can trigger signaling processes in cells by activating olfactory receptors,” wrote the authors of this study in a January press release. “Those receptors are mainly located in the nose, but they have been proved [sic] to occur in all types of human tissue, including skin, prostate and spermatozoa. Carcinogenesis and cancer growth are likewise significantly affected by terpenes.”