jackinbox, I don't about that. Not to be all technical but with fountain drinks it would not matter about the ice anyway. The post mix (syrup) is mixed with the same water that is used to make the ice. I am a little cautious when down there and only eat at certain restaurants. I will heed the Dr.'s warning though and try to avoid it till it gets fixed.
Actually, Pepsi and most other non-diet soft drinks use High Fructose Corn Syrup instead of sugar. I suppose H.F.C.S. is cheaper than sugar (at least in the USA). The only exception I noticed was a small brand called "Jones Pure Cane Soda". It is actually made in Canada. But Jones doesn't make a cola; only these unusual "Strawberry-Kiwi" and "Melon" flavored sodas. Jones however does make a "Cream Soda", which was the only flavor that sounded familiar.
Anyway, I have to remember to buy some Coca-Cola in Cozumel (or elsewhere in Mexico) on my next Western Caribbean cruise. I will be going on an E. Caribbean cruise in November. I wonder if they sell the Coca-Cola with sugar (instead of H.F.C.S.) anywhere in the Eastern Caribbean?
Last month, I brought a couple of Coke Light's home with me from a trip. Since it was on a Lufthansa flight, the coke was bottled in Germany. The only sweetener was aspartame, which is a little scary. Check the link.aspartame