Anthony Hopkins told Cindy Adams that he has lost a lot of weight in recent years thanks to an extreme restriction of calories.
I lost too much, 75 pounds in two years. But I gained a little back in Europe. I was addicted to bread, cookies, whatnot. I love all the bad stuff. My wife's no dictator, but she said I must stick to a regimen. So I'm in the gym six days a week, I power walk, live on 800 calories a day. No pasta. No seconds. A sandwich occasionally. Now I'm a health nut. I can't get back into my wardrobe. I gave it all away to some mission. I tried tailoring the pants but they look ridiculous.
Below, Hopkins in 2009, left, and 2006, right: