Vitamin D: 30 ng/mL

A vitamin D level of 30 ng/mL is considered low or inadequate. Low vitamin D may put you at increased risk for COVID-19, diabetes, and cancer, as well as certain autoimmune and neurodegenerative diseases (such as multiple sclerosis and Alzheimer’s).

25-Hydroxy Vitamin D Test

Is 2,000 IU of vitamin D3 safe to take? - Quora

Vitamin D levels and its supplementation in patients of heart failure - ScienceDirect

Relative Risk for vitamin D < 30 ng/mL.

Vitamin D - Siemens Healthineers

Cancers reduced after 2 years of 2000 IU Vitamin D daily (2nd RCT) – RCT Aug

Vitamin D Deficiency and Bacterial Vaginosis among HIV-infected and -uninfected Women in the United States

Association of circulating serum free bioavailable and total vitamin D with cathelicidin levels among active TB patients and household contacts

Diagnostics, Free Full-Text

Vitamin D status of the participants before and after the intervention.

Percentage of patients with sufficient (NL, >30 ng/mL, black bar) and low (

Predictors for Coronary Artery Disease in Patients with Low Vitamin D (

Vitamin D deficiency and parathyroid hormone levels following renal transplantation in children