You can drink protein powder and eat fruit at night, but you must eat it for breakfast and lunch!
You can lose weight by walking for more than 40 minutes after eating (this is what our biology teacher said, because I forgot, look it up online! )
So don't eat snacks, but also exercise regularly to ensure that you lose a lot of weight within three months.
This is the most scientific!
Note: You can't eat fruit on an empty stomach, let alone tomatoes! It's harmful to the stomach!