ECTRIMS: Vitamin D supplements recommended for MS?

From Multiple Sclerosis News Today (September 25, 2019)--"ECTRIMS 2019:  Are Vitamin D Supplements Recommended for MS? Experts Weigh In":

An issue of the NARCOMS  Now newsletter (vol. 8, no. 4, 2019) reached me today, and it includes a brief article, "Should People with MS Take Vitamin D? How Much and How Often?" summarizing the findings of Drs. Ascherio and Mowry. Excerpt:

...Neurologist Ellen Mowry, MD, of Johns Hopkins University School of Medicine in Baltimore, MD, provided practical advice for the use of vitamin D for people with MS. Dr. Mowry noted that studies have not yet proven whether treatment with vitamin D can lead to a change in disability status in people with MS....


How much vitamin D should a person with MS be taking to maintain health? Dr. Ascherio said he advocates a dose of 3,000 IU vitamin D per day. Dr. Mowry usually treats patients with MS who have low serum vitamin D levels to reach a target blood level of 40 to 60 nnmol/L. To  achieve this, she suggests oral daily supplementation at doses ranging between 2,000 and 5,000 IU. Higher doses are not recommended due to risk of toxicity....

More on the possibility that high levels of vitamin D supplementation might not be good--from ACTRIMS 2020, an abstract of a paper entitled "High-dose vitamin D worsens experimental CNS autoimmune disease by raising T cell-excitatory calcium." The ACTRIMS conference took place February 27-29, 2020.