How an 80-year-old's obsession with 'antioxidant' food ended badly

His kidneys failed after he guzzled almond milk, tomato paste and cocoa powder to prevent cancer

A health-conscious octogenarian ended up with an acute kidney injury after his antioxidant diet of almond milk, nuts, tomato paste and vitamin C led to a rare case of calcium oxalate nephropathy, US doctors report.