Adult dd 20. Lives at home. Her boyfriend also lives with us. She has an implant for contraception and since that was put in and since being with her bf she has piled on weight to the point im worried about her health. She's probably got a bmi of around 30 but won't weigh herself.
She's incredibly touchy over this. They eat too many take aways, sweets, fizzy juice etc which they buy themselves. Yesterday i mentioned the juice etc... She tells me most of her friends snort coke on a weekend, i should cut her some slack. But obesity has massive health implications.
I feel even gently encouraging exercise or mentioning eating well and she's triggered. She has previously self harmed and been very low (pre bf) mh services were not helpful/accessible
Other than set good example, rest of family healthy weights, eat well, play sports etc What can i do? I feel like im watching her health deteriorate infront of my eyes.
Aibu to think i can't do much else.