“What foods should you eat if you have obesity?”

A complex question. A more detailed assessment would be needed if meaningful recommendations were to be formulated.
Thank you,
PEL

Non processed foods would be a good start

My rule of thumb is to focus on getting enough protein every day (meat) and to stay away from sugar, anything with sugar in it and to stay away from wheat and any other carb that causes the blood sugar to go up and cause insulin to elevate. The best fruits that are low in carbs are raspberry, blackberry, strawberry and avocado. The best vegetables tend to be the green ones. Since I don't know your daughter, I recommend getting specific advice from a good bariatrician near you that can be found at: https://obesitymedicine.org/find-obesity-treatment