Golfer Peter Lawrie claims a fizzy drink addiction triggered a loss of confidence that saw him tumble in the world rankings.
Lawrie, 40, from Ireland, was 106th at the end of 2010, but now finds himself 725th as he attempts to get his career back on track following a radical lifestyle change.
Having gone from drinking several liters of soft drink a day to a couple of cans, Lawrie has spoken candidly about the impact the addiction.
"I was addicted to Coke and I've recovered from that," Lawrie told Newstalk's Off The Ball radio show.
"I was addicted to it, I tried to stop it and I cut it out completely. I went from such a high on sugar and stuff like that to a dramatic low.
"That happened three weeks after the Irish Open in 2013 and I never recovered from it, I really didn't.
"I know this might shock people, but I lost all confidence in myself.
"I wouldn't say I went through a breakdown, but I got exceptionally emotional at the end of that year and some of last year as well.
"It was very difficult to deal with all the situations that were coming at me. So whether that had anything to do with my mental state in any shape or form, I had no idea.
"I drink two cans a day, or three cans a day [at the moment], but I was drinking liters of the stuff, liters of the stuff. Even in the hottest country, in Malaysia, I'd have a Coke on the golf course because I was addicted to it."