Well im not sure if this is the right answer to ur question but
To have a balenced diet you should have fiber and minerals, vitamins, fats, protines, carbohhydrates, and also water.
Two other things i know are good for you are:
Bluebarries they are rich in fiber, vitamins A and C they also boost up ur cardiovascular health
Beans are also great because they provide protein, fiber, and they are low in calories and free of saturated fat
im not sure if this helps at all but glad i could try!