My dad suffered from gout, but not after he started taking Allopurinol.I suffered from gout years ago. It got so bad I could not walk for almost 2 months. Almost passed out from pain just trying to get to the bathroom. My doctor said gout can be prevented by taking a daily dose of Allopurinol, She was right. I have not had a gout attack for about 8 years.
I asked about not eating certain foods, and my doctor said the problem is in the body not ridding itself of the uric acid. Some foods might increase the uric acid in your body, but the real program was to take the daily medication and eat normally.
So, ask your brother if your canned meats will trigger a gout attack or if he is on medication for gout. I have no problem eating any kinds of foods now that I am taking Allopurinol. Before that, yeah, canned meat might trigger my gout. Now that I take a daily medication, nothing I eat will trigger my gout.
It's great that you are concerned about your brother. I would encourage you to talk to him about his current condition. If he is not taking a daily medication for gout prevention, mention to him that gout can be prevented, and life can be so much better for him with medication. As much as I hated to admit that I needed to take daily medication, I would much rather enjoy my life and not be bedridden in pain. My gout was that bad.