17yr old DS has developed what we can only assume is an eating disorder. Over the last 6 months or so I have been constantly finding empty bags from Burger King, McDonalds, crisps, sausage rolls etc in his room - always high salt and high fat - and in huge quantities. I cleared out 2 carrier bags full of the stuff hidden in drawers, cupboards, behind the bookcase etc before we went away in the summer. I hoped that would break the habit, but no such luck. I found a whole load 3 days ago, and yet more today - large tube Pringles, big bag crisps, packet of 6 sausage rolls, burger, large chips, 2 packets fried mozzarella sticks. He buys and eats secretly, but never throws the wrappers away so assume on one level he wants us to find out. I know this is likely to be a reaction to stress (he has had GCSEs this year and has moved school); I also know it is about control. And I know that the advice is not to turn it into an issue.... but that is really hard when his skin is a mess, he is getting pretty podgy, the amount of salt and fat he must be consuming is sky high, and goodness knows what effect this is having on his physical and mental health or ability to concentrate at school.
Any practical advice on what we can do?