AlgaeCal Ingredients. The Relationship Between Calcium and Vitamin D ; Boron. Boron is actually a naturally-occurring carbohydrate in many fruits and vegetables. Researchers who scoured the medical literature for evidence that calcium and vitamin D pills could help prevent bone fractures. there was no statistically significant relationship between use of the mineral (in pill form) and the risk of. calcium or vitamin D from diet alone, and in many individuals…