Vitamin D Level Above 55 ng/mL Cuts Infection Rate by 47%

Even after adjustment for gender, age, ethnicity and latitude, the risk of having a positive COVID-19 test result was far lower among those who had more of this in their blood.

STORY AT-A-GLANCE

• Based on data from 191,779 American patients, people with a vitamin D level of at least 55 ng/mL (138 nmol/L) had a 47% lower SARS-CoV-2 positivity rate compared to those with a level below 20 ng/mL (50 nmol/L)

• Based on data from 7,807 Israelis, those with a vitamin D level above 30 ng/mL (75 nmol/L) had a 58% to 59% lower risk of testin…