Could Your Water CAUSE Cancer?
Just a few weeks ago, I warned you about newly uncovered health risks associated with ingesting fluoride in your water. (You can read about them here.)
Today, I have another warning about the potential serious consequences of drinking from the public water supply.
This time, researchers have uncovered an alarming connection to TWO cancers…
There’s no doubt that adding chlorine to the water supply has saved countless lives.
It is a cheap way to disinfect the water, and it was a key reason for the near-eradication of water-borne illnesses like cholera and typhoid fever.
But it has come at a cost.
According to a new meta-analysis that looked at 30 studies including 90,000 people, drinking chlorinated water is associated with a 15 percent increase in colorectal cancer risk and a 33 percent increase in bladder cancer risk.
The problem is that, when chlorine interacts with organic compounds (like the ones found in water), it creates harmful trihalomethane byproducts.
The most well-known are chloroform, bromoform, bromodichloromethane, and chlorodibromomethane—all of which are carcinogenic.
The other problem is that while the U.S. has set a safe level of these byproducts at 80 parts per billion (ppb), this latest research indicates that the increase in cancer risk occurs at levels as low as 40 ppb.
Most water supplies have levels in the 40-60 ppb range.
See the problem?
According to the Environmental Working Group (a non-profit that advocates for environmental protection and human health), safe levels are dramatically lower… at 0.15 ppb.
The good news here is that you have options.
If you have public water, I recommend reducing your exposure to chlorine (and its byproducts) by investing in a good quality reverse osmosis water filter.
There are enough things to worry about in this world. Your water shouldn’t be one of them.
P.S. Beware of this common toxin attacking your grandkids
View Sources
Helte, E., Söderlund, F., Säve-Söderbergh, M., Larsson, S. C., & Åkesson, A. (2025). Exposure to Drinking Water Trihalomethanes and Risk of Cancer: A Systematic Review of the Epidemiologic Evidence and Dose–Response Meta-Analysis. Environmental Health Perspectives, 133(1), 016001
