My DD (9) told me that she's worried about her friend who I'm going to call Lucy (10). Lucy has been hiding her food at lunch, either asking the others to take some of it to the bin, or sneaking it to the bin while the staff aren't watching. DD says Lucy is also being very negative about her looks and quite sad. All the girls have hot meals, DD says Lucy likes the food but doesn't want to "get fat".
Here's my question. Should I either
a) Do nothing.
b) Tell the teacher.
c) Tell Lucy's mum.
A bit of background. DD's closes friend group is 4 girls including Lucy. They seem to all get on well. Lucy is one of the oldest in the year and it just so happens the other 3 are all summer born. Both Lucy's mum and dad are tall so Lucy does stand a head taller than the other 3 girls. Lucy's dad works abroad and only comes home on leave. Her Mum is in one of those careers where you have to keep on top of you professional qualifications and I know she has a major assessment/exam coming up. Lucy has one sister who's doing A-Levels. I mention this for background but also to point out that they have busy lives (like a lot of us).
I don't think the class teachers go into the lunch room.
I know her Mum well enough to have a coffee while the girls play but not a friend. I would have to tell her over whatsapp.
I don't think the class teachers go into the lunch room.
I hope this is the right thread to get advice.
I keep flip flopping between saying something to a teacher and doing nothing, so over to you hive mind.... What should I do?