Some brand companies introduce meal replacement, but the price is relatively high, and they are all liquid and have no satiety.

You can consider milk+oats to feel full, but after eating for a long time, life becomes black and white.

Have a full breakfast, eat a good lunch, and have a proper amount of carbohydrates to supplement your physical strength before dinner exercise. Fat consumption also requires physical strength.

However, according to personal physical quality, a reasonable meal replacement is. The above is my own experience.