What you may have heard
Frequent consumption of hot lemon water is rumored to prevent or cure cancer.
What the science tells us
There is no scientific evidence that lemon water has anti-cancer properties. Lemons contain Vitamin C and other antioxidants, which are good for overall health, but no studies show that drinking lemon water, whether hot or cold, has any special effect on cancer risk or outcomes.
Laboratory Evidence/Supporting Evidence
Claims related to lemon water and cancer prevention may stem from limonene. Limonene is a natural compound found in the peels of citrus fruits that, according to animal studies, may slow cancer growth (MSKCC). However, there is no evidence that these effects occur in humans or result from drinking lemon water.
How to reduce your risk
No single food or beverage can prevent or cure cancer. A healthy lifestyle, such as maintaining a balanced diet, exercising regularly, and following recommended cancer screenings, is the best way to lower your risk. It is crucial to follow medical advice from your doctor when considering treatment options.
Bottom line
While lemon water is fine to drink, there is no evidence that it can prevent or cure cancer.
To read more about healthy hydration, check out The Nutrition Source, an initiative of the Harvard School of Public Health Department of Nutrition.