The Celebrate Vitamins Essential Multi 2 in 1 is a unique multivitamin that contains all of the essential vitamins coupled with calcium citrate. This is the only bariatric combination chewable that uses only calcium citrate (the recommended form of calcium for WLS patients). By taking 4 chewables per day you will get a bariatric level multivitamin that includes 10,000IU of Vitamin A, 3,000IU of Vitamin D, 1000IU of Vitamin B-12, and 1,500mg of calcium citrate! And since Celebrate’s combination multi includes calcium citrate but does NOT include iron, you will not have to worry about iron-calcium interaction. Directions Chew 1 tablet, 4 times daily (allowing 2 hours between tablets) or as directed by a healthcare professional, as a dietary supplement.