Pro golfer John Daly has had to make some big lifestyle changes over the past several years in the name of good health.

After publicly battling issues with his weight and alcoholism, Daly decided to have lap-band surgery and get himself cleaned up. He's dropped several waist sizes and has been clean and sober for six years. But one of the hardest things for him to give up has been his Diet Coke habit.

In a recent interview with The Guardian, Daly says he now only drinks about a dozen cans a day. Only a dozen, you ask? Yes, that's a small amount compared to the 26 or 28 cans he says he used to drink every day.

Daly says he would still drink that much if he could, but after having lap band surgery, it would be harmful for him. Although, everyone wonders if he's so concerned about his health, why does he still smoke about 40 cigarettes a day?