I guess it's different for everyone, but I am not really sure why rice gives some people D either. I know when I was little, I got Salmonella food poisoning. My mother was worried because I had unstoppable D, and was dehydrated.The doctor told her to give me rice because it's binding. I make rice for my dog as well, when she has D and it works like a charm.With all of the pesticides and chemicals the food industry uses, perhaps it's something other than the actual rice itself. Kari