Hamilton worried about Scherzinger's weight loss

Lewis Hamilton is worried about singer and ex-girlfriend Nicole Scherzinger's weight loss

and wants her to take care of her health.

The duo recently ended their seven-year-long relationship, but they are still in touch.

"Lewis has seen the recent photos of Nicole looking stick-thin and is really concerned," dailystar.co.uk quoted a source as saying.

However, Scherzinger thinks differently.

"He told her 'enough is enough now'. But Nicole actually likes her new, skinnier figure. She thinks it's great," said a source.