Tespo Vitamin Pods?

Have you thought about mixing a powder calcium supplement into your protein drinks? I did that for a long time (can't for the life of me remember the product name), but I got 500-1000mg of calcium per day that way. And while the last sip was always a bit gritty, it didn't affect the taste of the drink.

I remembered the name -Upcal D.

Upcal D at Amazon