Sign-in to Ask A Doctor - 24x7
OR
Sign in with GoogleGet your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
Can A Vitamin D2 Supplement Be Substituted With Vitamin D3?
Hi! My blood test showed my vitamin D level at 18.5 so my doctor prescribed a once a week D supplement. It is D2 and I would prefer to take over the counter D3, maybe 1000 units a day or a bit more. Should I do this? (I am 74, very active, good health, take 7.5 levothyroxine and Evista daily). Thanks!
Fri, 13 Mar 2015
Good Day!
Vitamin D3 is the preferred form of supplementation and 1,000 IU is the same dosage I am currently on. So yes, feel free to switch as vitamin D2 does little for increasing tissue levels of this important nutrient. I hope this satifies your question and if not, please get back with me. Thank you for visiting HCM!
Kathryn Shattler, MS,RDN
Vitamin D3 is the preferred form of supplementation and 1,000 IU is the same dosage I am currently on. So yes, feel free to switch as vitamin D2 does little for increasing tissue levels of this important nutrient. I hope this satifies your question and if not, please get back with me. Thank you for visiting HCM!
Kathryn Shattler, MS,RDN
I find this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer.
For a more detailed, immediate answer, try our premium service
[Sample answer]
Related questions you may be interested in
Loading Online Doctors....