Washington (ANI): Hollywood star Tom Hanks has hired a new chef to help him stay in shape, after hearing about his friend Robin Williams' recent heart scare. Williams took ill on a comedy tour, and had to undergo heart surgery to replace a valve in March.

Sources have revealed that the news proved so scary for Hanks that the actor decided on getting his own check-up done. According to them, Hanks' doctor warned him that yo-yoing dieting for film roles was damaging his health. "Tom's new chef travelled with him on the Angels and Demons press junket.

Robin's heart surgery really drove home the point to Tom that if he wants to enjoy middle age, he'd better start taking care of himself," Contactmusic quoted an insider as telling the National Enquirer. "At home and on the road, his full-time meal maestro cooks steamed or broiled chicken, fish and lots of vegetables. Tom's favourite cookie-dough ice cream is now a no no," the source added.