Supermodel Heidi Klum has confessed she bribes her children to eat healthily.

The German beauty has four kids - three of them by her ex-husband Seal - and admits she runs a disciplined household to keep her brood in check.

Klum has developed a 'points' system to reward the youngsters for good behaviour, but when it comes to getting them to tuck into a healthy smoothie for breakfast each day, she resorts to paying them a dollar a time.

She tells The Times Magazine, "Some parents may think that's wrong, but at least I know they've eaten something healthy. Their lunchboxes (containing more healthy food) come back empty, so I don't really know what they've eaten. It feels like they earned their money."