The minute I bought 25 I collapsed onto the floor because I couldn't walk and lost the ability to breathe. I regained these abilities after refunding the album, though.
Obviously not since she doesn't write songs about how great being overweight is and has said before she does have body issues. I'm sure Adele is aware that being overweight can pose health risks (although she has slimmed down and she's definitely not OBESE at this point - the health risks of being just mildly overweight are exaggerated) but that's her issue to deal with (or not deal with) how she likes, and has nothing to do with her singing.