Why are calcium, magnesium, zinc and vitamin D3 important for daily wellness?Each nutrient has an invaluable position in sustaining regular human body functions. Calcium is widely connected with bones and teeth, while magnesium adds to normalcy muscle and nervous process function. Zinc helps regular immune purpose and assists keep healthy skin, hair and nails. Vitamin D3 helps your body digest calcium effectively and plays a part in the maintenance of bones and muscles.