Remedy for Kidney Stones

Make sure you never get stoned again: Duke University scientists recently determined that drinking 830ml of lemonade daily prevents the recurrence of kidney stones. Why? Lemon juice is naturally rich in citrate, a substance that binds with calcium in the urine to keep salts from crystallising into stones, says lead investigator David Kang.

To flush your plumbing, knock back half a cup of lemon juice mixed with 1.9 litres of water — sweetened to taste with a sweetener — daily. If kidney stones aren't a concern, limit your lemonade intake; studies suggest it erodes tooth enamel.