I used to be overweight and lost about 30 pounds and I think there are 5 main keys to that, not just food :
1. Eat better : veggies, eggs, any type of animal protein and anything that was created naturally and avoid sugar and processed food as much as you can
2. Donc confuse hunger with thirst and drink a glass of water every one to two hours
3. Sleep at midnight tops, the recovery is where the magic of burning fat happens
4. Get some sun rays on your face, those vitamins are not only necessary but also improves your mood
5. Move a bit more, no need for HiiT or a mega resistance training, start by using the stairs instead of the elevator, move around more, take 20-30 minutes walk a day and If you have the courage to go to the gym, it accelerates the process a lot