An 89-year-old retired businessman died from an “overdose” of Vitamin D supplements that did not warn about the risks of excessive intake.
David Mitchener from Oxted, Surrey, reportedly had fatally high levels of Vitamin D when he was brought to the East Surrey Hospital last year in May and was suffering from hypercalcaemia – a build-up of calcium in the body associated with taking too much vitamin D.
He died ten days later.
The climate is habitable though. You just need to take a vitamin supplement. If that makes a place uninhabitable, then there’s practically nowhere that’s habitable - All places require that we shield ourselves from the environment in some way.