Claim: Tap water is the most underrated cause of disease because it contains chlorine, fluoride, pesticides and heavy metals.
Fact-check: UK tap water among safest in the world - Full Fact
Verdict: in the uk, these substances are present in tap water in very small amounts and are strictly regulated to keep the water safe.
Organisation: Full Fact
Author: Dr Fergus Brown
Date published: 2023-09-19T00:00:00