Im in the same situation as reason by now. About a month ago I have been taking just zinc (100mg daily), and little by little I have been noticing improvements.
After two years of fighting, I can say that almost all issues are gone. Very little ED, libido is increasing, and concentration is at its full.
No diet whatsoever, I eat what I want. Diet may help, but I discovered that if you take it very seriously then it can be even harmful, because you are constantly expecting changes in your wellbeing and that causes you stress and even more depression. Therefore instead of recovering you do the oppositte.
Take my advice, body heals really on its own, but it takes a really long time. Healthy diet can be helpful but not in a very strict way, since it could cause symptoms to worsen.
My experience with all this shit is:
first.- be patient and optimistic. We have to think that this can be reversed. We have to believe in that, because to believe the contrary is destructive.
second.- take some vit B, C, and Zinc (at least in my case).
third.- expect to have some good days, followed by longer periods of bad ones. Slowly this will reverse, and after time, you will have more good days and less bad ones.
Best luck.