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Recently, I shared two disturbing studies on public drinking water.

In one, chlorine in the water was associated with an increased risk of colorectal and bladder cancer.

In the other, increased fluoride exposure was associated with lower IQ in kids.

Today, I want to warn you about something else lurking in your water…

And it’s silently increasing your cancer risk.

If you read my previous warnings and have reduced your public drinking water consumption, that’s great.

If you didn’t, this disturbing new research may inspire you to make the change.

A recent study found that those living in areas with high levels of “forever chemicals” had a 33 percent increased risk of the following types of cancer:

  • Endocrine
  • Digestive
  • Respiratory
  • Mouth
  • Throat

Forever chemicals are also known as PFAS, which is short for per- and poly-fluoroalkyl substances. They earned the nickname forever chemicals because once they’re in the environment—or your body—they basically last forever.

The EPA has set the safe limit of particular forever chemicals (like PFOA and PFOS) at 4 parts per trillion (ppt). Others are a bit higher.

But experience tells me that the EPA’s so-called “safe” levels are often far higher than they should be.

If you want to discover how contaminated your drinking water is, the Environmental Working Group has a handy map detailing the results of PFAS testing by town.

While some areas are relatively low, others are alarmingly high.

For example, in certain areas near my city in Arizona, various PFAS levels were found to be in the hundreds and even thousands (ppt)!

You should know what you’re drinking.

I recommend investing in a quality reverse osmosis water filter to reduce your exposure to these toxic forever chemicals.

P.S. Testing revealed 189 cancer-causing chemicals in everyday foods. CLICK HERE to reveal how they got there and how to reduce your risk.

View Sources

Li, S., Oliva, P., Zhang, L., Goodrich, J. A., McConnell, R., Conti, D. V., Chatzi, L., & Aung, M. (2025). Associations between per-and polyfluoroalkyl substances (PFAS) and county-level cancer incidence between 2016 and 2021 and incident cancer burden attributable to PFAS in drinking water in the United States. Journal of Exposure Science & Environmental Epidemiology


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