Depends on the uses. every food is good in a manner they are rich about some food is good in minerals, some in vitamins, some in fibres, some in proteins so its depend on the requirement of the body.
Hope you got my point.
I think you can try a vegan diet - there's a lot of receipts even for those who normally aren't interested in veganism. There's a ton of great receipts on Creativevegancooking, so check them all out. It's very effective for weight loss, I also started to feel better after I started cooking some of that stuff.
Vegetables, good protein and fats. You should also take some good and healthy supplements and vitamins, I guess. I would recommend that you have a look at the service on eDrugStore.com for this purpose. Maybe you will find something for you there, good luck!