This is an interview with Kirsty Alley, the American actress who lost 5 stone in 3 years before gaining it all back.
Forward to 2min38 and check out what she says about the reason for gaining the weight back: “I had the same bad habits” and “It’s all down to habit”
This is the essence of keeping weight off. As I regularly say, there are plenty of ways to lose weight (both healthy and unhealthy) but only one way to maintain weight loss: change your habits. It’s as simple as that.