*15.1.2 Function*

Calcium has an important role in the human body. It is essential for the development of growth and maintain bone and reduces osteoporosis, helps regulation of muscle contraction, and maintains blood pressure. Calcium also prevents colorectal cancer [145] and preeclampsia [146].

### **15.2 Magnesium**

Magnesium is one of the most important macro-nutrients for the human body.
