Standard Jamba juice - nothing on the menu is labeled for GF. They do have fruit, and some packaged snacks that are certified GF.
They do have an "allergy blender" in the back that they can use. I don't know how much this reduces cross-contamination but seems like it's better than nothing?
There are minimal GF options are JFK T5 so hopefully this helps someone.
— Somewhat
— No gluten-free information on the menu
— Some
— Good