As a dietitian, you always hear jokes about the Four Food Groups. That was before the Food Guide Pyramid, which was before MyPlate . I always said there ought to be a food group for chocolate. I'm not one of those who eat chocolate everyday or anything but I do LOVE chocolate. And now that I'm in Vegas - the land of plenty-and plenty of everything-and that includes CHOCOLATE. I started counting all the chocolate places I've run across and finally stopped counting, just like I stopped counting how many miles I must be walking everyday. This is the land of over-abundance of everything! Yesterday, I ran into the world's largest chocolate fountain. Pictures do not do this justice but I'll try. This is located near the lobby of the Bellagio in a French bakery cafe where I stopped for a little bite to eat - a tuna pannini. It was just a pre-made, quick bite to eat but it was so delicious - the p...