We spent 8 hours in this Sky Club, spanning lunch and dinner. Items are marked "Avoiding Gluten," but it is a buffet, so there was a lot of gluten flying around. There was kale salad, cold meat and cheeses(these tested GF on my Nima), Mediterranean couscous(in a covered server), and marshmallow crisp squares. We got there at the tail end of breakfast and I did notice that the yogurt was portioned out into cups, so there were no sealed yogurts. There were also bananas, oranges, and apples(these were wrapped in plastic wrap).
The Hudson News directly next to the Sky Club had a decent selection of GF snacks. Made Good bites, PopChips, jerky, cheese sticks, etc. Between the snacks I got here and the bananas, oranges, meats and cheeses from the Sky Club, I didn't go hungry during our epic flight delay.
— Gluten-free items are marked on the main menu