My moms been a big woman all her life. Seriously obese, I've seen her lose weight one time and at that point she was abusing laxatives and starving herself. Even then I only saw her lose about 50lbs. Currently shes about 300lbs and has begun a new diet. Its not a cheap do it yourself eat healthy and exercise diet but an expensive $500 a month for some powdered shit thats gonna be your meals for the day diet. She's been doing this for about a month or two and its working for her. Recently though (about the last week) I've been noticing shes beginning to "cheat". Sneaking late night snacks and having sweet treats. I want to mind my own business.. its her life, its her money, its her health. But I've been told by someone that I should step in when I see her cheating. That as her daughter and someone who loves her this is somehow my responsibility. Its a sensitive matter to be sure. I wouldn't want other people, even loved ones monitering my eating habbits. So, what do you think? Is there a point where I should step in or should I just let her do what she wants to do?