I learned about a product called Renagum at a conference recently. It's chewing gum that you chew for 20 minutes after each meal...........it has a non-calcium component in it to help bind phosphorous in food, so it does not add to your calcium intake. I think it's chitosan. It can help you take fewer binders and I have some patients on it who do really well. It's not covered by insurance, unfortunately, but that may change. I think it will cost you about a dollar a day to use the gum. You can google Renagum to find it. Or if you're having trouble, let me know and I can provide info on it.