My older special needs son's primary form of nutrition is a special formula. (His ability to eat by mouth is very limited. He has a g-button.) With the airline restrictions I am not quite sure how I am going to transport 7 days worth for the cruise. If needed, he can make do with Pediasure. Is that available for purchase on the ship? (Or by "formula" do they tend to mean the infant variety?) I can't send a box ahead since food items are prohibited. If anyone has experience with this, I would love suggestions or advice.