Which Riu? We had planned to go to the Riu Palace Riviera Maya (we would have been there next week) but decided to put it off until next year...hopefully. I'm super jealous of you. From what I understand you will have a lot of food choices. I've never been to an all-inclusive, but I have been on a cruise which is somewhat similar, and last year we went to Atlantis Paradise Island. When I vacation I do not eat paleo, but my wife and I have found it easy to stick to gluten-free, especially when it comes to big fancy resorts. I say go ahead and relax but still do your best to avoid gluten.
“You may have thought you heard me say I wanted a lot of bacon and eggs, but what I said was: Give me all the bacon and eggs you have.” - Ron Swanson