Viactiv calcium can't be absorbed by RNY folks

I learned after taking Viactiv calcium for several weeks that it is made from calcium carbonate which is not absorbed by those of who have had RNY. That means we don't benefit from the calcium in this form, and the effects are not seen until later in life when osteoperosis develops in some. Fortunately, I found out I supposed to take calcium citrate which is easily absorbed. Now I take Citracal Creamy Bites which are delicious, and taste like little petite four cakes. I bought the lemon flavored ones at Walmart. They also come in Chocolate, Chocolate Mint, and Caramel. Each has 500mg. I take 3 a day, just not all at once. I hope this helps everyone! Rebecca