There is a direct connection between gut bacterial diversity and vitamin D levels The precursor form of vitamin D – (25-Hydroxycalciferol – this is the most common form tested on blood labs) The active form of vitamin D – (1, 25 Dihydroxycaldiferol [Calcitriol] – which is rarely tested for) …”We were surprised to find that … Continue reading Bacterial diversity in the gut is directly linked to Vitamin D levels