I first used this method in my sophomore year.
1.
Breakfast: a cucumber and an egg.
2.
Lunch: a cucumber and an egg.
3.
Dinner: Any cucumber.
4.
Help yourself to fruits (preferably bananas and apples) and drink more yogurt.
I use this method,
In the first week, I strictly followed 123 and didn't eat anything else. In addition, I lost 8 pounds running, which is quite obvious. In the second week, I had enough of cucumbers, so I ate more fruits, so I only lost 4 Jin. But soon.
If you want to lose weight quickly, just eat 123 a week and keep it fast for a week. If you want to lose weight for a long time, you should eat normally in the morning and afternoon, eat an apple for dinner and exercise.
This is the healthiest and best.
I wish you success in body shaping.