ok, shamelessly posting here for more traffic sorry.
my DSD, 12 (yr8) said she weighed herself and she weighs about 5 and a half stone - not sure of BMI but it is now definitely underweight. it also means she's lost half a stone recently.
she doesn't know why she's lost this much and she's a bit worried. she's always been skinny, and was diagnosed with coeliac (at the same time as her dad) age 8 - this explained why she was skinny as she wasn't getting enough nutrients. she'd made a lot of progress putting on weight so she's quite upset.
how can she put on weight healthily? she doesn't live with us but if anyone has advice we can pass on that'd be great...