Going against the grain and banishing gluten from your diet

WORLD tennis number one Novak Djokovic is a man who knows a lot about discipline.

When he beat Rafael Nadal in the 2012 Australian Open final he rewarded himself with chocolate — one solitary square, which he popped into his month and savoured as it melted on his tongue.

“That was all I would allow myself,” he said at the time. “That is what it has taken to get to number one.”