Someone didn't like my "so?", but it would be a good idea if the poster - better the patient - googled the condition.
I worked for years with an arthritis clinic. Hemorrhaging into joints isn't because you failed to have the right breakfast yesterday morning. Maybe many wrong breakfasts over time, but that does not seem to be the main quandary if you explore the problem.
I'm not a rheumatologist, but the advice our poster's friend got (about food???? cripes almighty) makes me wonder who the patient is seeing.
This person needs a specialist, and that would be someone who passed boards in rheumatology (or a clinic with someone like that running it).