Intratrial Exposure to Vitamin D and New-Onset Diabetes Among Adults With Prediabetes: A Secondary Analysis From the Vitamin D and Type 2 Diabetes (D2d) Study. Diabetes Care 2020;43:2916-2922.

We thank Dr. Davidson for his comment (1) on our article (2). We agree that weight loss is critically important in reducing risk of diabetes; weight loss can also result in increased 25-hydroxyvitamin D [25(OH)D] levels. We did not adjust for weight change because weight remained fairly stable during the trial. Nonetheless, in response to Dr. Davidson’s request, we have examined the impact of adjustment for change in weight (final − baseline weight) in the fully adjusted models shown in our article. In …