Multi Vitamins?

I am only 6 @ wks post LAP RNY, but I have been taking liquid Calcium Citrate with Vit D since right after surgery. Nutritionist says 100-1500 daily are needed, and take it k500 at a time with food. Other forms of calcium are apparrently not able to be absorbed now. You can get it in nutrition stores or on-line. BLUEBONNET makes blueberry, oirange and lemon flavor.