Okay, this seems to make the most sense of anything I can find. www.mollysfund.org/mixed-connective-tissue-disease/
Basically, ANA & RNP are indicators that you might
have SLE / MCTD, but without symptoms the diagnosis cannot be confirmed. I supposed some Drs may choose to treat (my guess would be with Plaquenil) without symptoms, but the majority would more likely take a wait-and-see approach.
I haven't been able to locate anything that says testing positive means you are any more likely to develop symptoms than the next guy.
I also don't find anything that suggests a particular diet will affect acquisition of a disease. There is *some* indication that nightshade plants and legumes make some SLE symptoms worse, but that is just a general guideline found in the excellent Lupus book, "The Lupus Book: A Guide for Patients and Their Families", by Dr. Daniel Wallace.
(Note that we are not Drs here, just people who have had SLE/UCTD/MCTD...)
Hope that helps.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2000DIAGNOSING LUPUS & HW's LUPUS 101
"Life is far too important to be taken seriously." - Oscar Wilde
Post Edited (Lynnwood) : 8/18/2017 11:12:51 AM (GMT-6)