Jim Carrey beat depression by eating vegetables.

The Hollywood star - who is set to detail his mental health problems in a new self-help book - claims sticking to a healthy diet has transformed his life.

He said: "I tried dealing with depression by taking Prozac. It was good for a little bit but it didn't heal me. I don't believe that can ever be the cure."

"My diet has made a huge difference. People have no idea how important food really is, what you put in your mouth has something to do with your emotional life. I believe the best fuel for humans is vegetables and protein."

The 'Horton Hears a Who!' star - who struggled to cope following failed marriages to waitress Melissa Womer and actress Lauren Holly - now stays positive by having a new outlook on life.

Carey, who has been dating actress Jenny McCarthy since 2006, said: "Everybody has a certain amount of darkness in life and I am not free of pain either. Today, though, I have a different perspective on it than I used to have. I have grown a lot spiritually and as a person over the last couple of years."