14 year old DD Significant weight gain

[Grian]

Before lockdown my daughter was overweight (10 st). I noticed weight gain over lockdown, so was expecting the number to go up, but she had a doctor's appointment today and I was shocked when the doctor said she weighed 13 st. She is now very overweight and in the 99th centile. Both myself and my husband are key workers and have been working more recently, making it easier for her weight to shoot up. She is the only one in the family with weight issues. She didn't even seem bothered. She doesn't know when to stop eating and refuses to join the rest of the family for exercise. Her two siblings have always been a healthy weight.

I was very overweight as a teenager and it was horrible. I wish my parents had encouraged me to lose weight, instead I was told I was fat a lot and made fun of a lot but then the house was full of crisps, biscuits, sweets and chocolate and we were overfed and now allowed to leave food on the plate.

Encourage an overhaul of everyone’s diet. Don’t give any of the kids the money to buy junk and meal prep healthy stuff that she can heat up when you are working. I lost weight when I went to uni just by being away from the home cooking but I wish I hadn’t spent my teen years so fat.

*not allowed to leave food on the plate

You're going to have to stop buying any kind of snacky treats or junk. She also has to be physically active in some way every day- it doesn't have to be boring, it could be Just Dance or Pokémon Go, anything that gets her moving.
How tall is she? You need to help her make healthy choices.