A US politician has turned blue from drinking a silver solution he believed would protect him from disease.
Stan Jones, Montana's Libertarian candidate for Senate, started taking colloidal silver in 1999 for fear that disruptions linked to the millennium might lead to a shortage of antibiotics.
He made his own concoction by electrically charging a couple of silver wires in a glass of water.
His skin began turning blue-grey a year ago.
"People ask me if it's permanent and if I'm dead," he said. "I tell them I'm practising for Halloween."
He does not take the supplement any longer, but the skin condition, called argyria, is permanent.
The condition is generally not serious.
Colloidal silver dietary supplements are marketed widely as an anti-bacterial agent or immune-system booster, but some consider it quackery.
Mr Jones is one of three candidates seeking to unseat Democratic Senator Max Baucus in November.
Politician turns blue from drinking 'health' solution
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