We have seen the lists of exchanges, ie groups of foods with similar characteristics that can be exchanged between them.
We analyzed one of our samples and prepared a personalized diet for him.
Our champion will be able to prepare his diet alone with protein, carbohydrate and fat blocks and lists.
We told him how many blocks he needed, he could choose which ones.
We must always suggest healthy foods like lean proteins, whole grains, healthy fats. However, we will try to change his bad habits a little at a time, so that the change in his diet will take place gradually.
We realized that our sample eats not too correctly, less than its needs, and sometimes the choices fall on foods that are not too healthy.
Here is a food plan to start this journey. This is an example:

With food lists, he can make changes when necessary.