Cataplex® D, 180 TabletsCataplex D is a vitamin D supplement providing 40 mcg (1,600 IU) of vitamin D that supports the immune system, bone health, and mineral absorption.* Supports healthy immune system response function* Encourages healthy calcium absorption from the intestinal tract into the blood Supports and maintains healthy bone density* Provides vitamin D, which is needed by almost every cell in the body for development and transcription Excellent source of vitamin D