It's only the first day, and my body is not fully developed. If you go on a diet at this time, your height and chest will stop developing. You can try yogurt diet in the morning.

Get up every morning, drink a cup of boiled water first, and then a cup of honey water. Then drink a yogurt (about 200ml) and eat a whole wheat bread/a bowl of oatmeal. Try to buy low-sugar yogurt or low-fat yogurt (fat content 1.0─ 1.5%).

noon

If you feel hungry, drink a bowl of soup, eat a few mouthfuls of rice or some biscuits first. Then drink a portion of yogurt (about 200ml). Then eat 100g chicken/beef and mutton/fish/viscera/blood. These things are mainly iron supplements. Plus a plate of vegetables, you can eat small tomatoes/big tomatoes/lettuce without cooked vegetables. Drink two cups of oolong tea after meals to help digestion.

4 p.m.

You can have another cup of yogurt when you are hungry.

evening

Drink a glass of water or soup before meals, and then eat a plate of green leafy vegetables (make soup with chicken essence, or add a few drops of sesame oil to cool it). Then drink a cup of yogurt like noon. You can eat some fruit when you are hungry.