Blood test proof that D2 worked better than D3 for me contrary to what you say
I was tested(25 HydrxyOH) in May and found to be deficient Level 26.6 put on Vit D2 for 6 weeks(50,000 X 6) and then retested 2 mos later and my level went up to 66. Following this I bought a good quality (Country Life) D3 supplement and took 2000 units daily for 3 mos and then just retested again(same blood test same lab) and my level went back down to 30.
Now they put me on the D2 again for 12 weeks. Since D3 did not work for me the first time how I can count on my level to stay consistently adequate.
I feel much better when my level is higher. So how come my body reacted differently to Vit D2 than your predictions and how can I be sure that D3 will keep me at the level of Vit D that I feel better at. (I do have some osteopenia and I am 65 years old)