Reply To: Hi If I´m taking 50,000 IU D3 once a week, but I´m not taking any supplemental cofactors (ie Magnesium, Zinc, Vitamin K, Boron, Vitamin A) what is the effective amount of Vitamin D3 that I´m getting ? Thanks very much
Vitamin D needs these co-factors so it can operate properly and use them to perform functions. If you have a healthy diet, then Vitamin D will get these co-factors from the food you eat. Most of them help to form bones or make reapirs correctly but they also do other things.