Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I'm a state-paid caretaker for my grandparents, along with an older sister of mine. My grandma, who is 84 and about 178 pounds, has been told by her doctor to cut out sweets in their entirety, *especially* soda. My grandma has already gotten much better; in the last two years she really cut down on Pepsi and lost about a hundred pounds.

However, it seems she's hit a plateau and she's not really loosing any more weight, maybe a pound here or there and that's it. My concern is that she has a tendency to refuse the meals that my sister and I prepare for her (which consist of vegetables, good fats, protein, and so on), and instead begs to have cereal like Honey nut oats or cinnamon raisin bread. She'll ask for ice cream and then say she's too full to eat any of her actual meal, and she'll throw a fit if we ask her to wait for dessert until afterwards.

My grandma got really close to kicking the Pepsi habit for real, that is, until she discovered that root beer doesn't have any caffeine in it. Now she's drinking a big glass of root beer every day, no matter how many times my sister and I sit down with her and try to explain that *sugar* is the problem more than caffeine. 

She gets VERY upset whenever my sister and I question her diet at this point. The thing is, I do see where she's coming from. My grandma has all her independence stripped away from her; she can't drive and she has to rely on her grandchildren for transportation and to make most of her purchases for her. She says she knows that it's bad for her, but that she's so old she doesn't want to sacrifice her small joys for maybe an extra year or so of life. 

However, although I understand her, her mental facilities *are* slipping and it seems like she literally wouldn't eat any real food unless my sister and I kept up the pressure to eat healthy. She claims over and over again that she *never* gets to eat anything sweet, which is a lie. The reality is that she gets stressed out and wants to eat sweets to calm down and maybe exert some independence.

Would I be the asshole for refusing to buy her root beer? At this point in time, I don't really know what to do so I just try to remind her that her doctor wouldn't want her drinking that, before going and getting her soda anyways. In this case, am I the asshole for enabling her sugar addiction? 

She gets pretty upset when I remind her about her doctor. Should I stop bringing it up and just let her have her way? Her memory is so bad, and she's so willful about getting her way, that it's impossible to to try to some sort of compromise to limit her soda intake. Reddit, please help me because I'm in dire need for a moral judgement here.

not buying my disabled grandma soda when she asks for one