You know, I've never taken Tums for calcium - I only take them when I have heartburn. But you're so very right - Voactiv taste so much better for calcium.
Did you know that there's more calcium in a cup of broccoli than a cup of milk?
(I have learned a lot about vegetarianism, and that was one thing I learned about milk, and how humans are the only mammals that continued to drink milk after adulthood.) **Though I still love milk, and I have gotten into soy milk, as well.**
It's just a common misconception that milk is the best way to get calcium.