Diagnosed with ET/JAK2 in 2016 and have been taking D3 and B Complex for years with good results.

I take a daily multi vitamin that includes both of those.

I’ve been taking 2000 units of Vitamin D3 for almost five years since my diagnosis of PV. However, something very confusing. My new neurologist just ran a vitamin D level among other tests and found that I’m deficient. How can that occur?

Hi! I've been taking both folic acid and Vitamin D for many years. I had PV for 15 years, which morphed into Post PV Myelofibrosis.