Only 3% of black and Hispanic women have healthy D levels; only 19% of whites > 40 ng/ml! 50 ng/ml is safe from Covid, and 80-100 ng/ml is ideal.

From: grassrootshealth.net

The chart below shows vitamin D serum levels in US women of childbearing age (18-45 years), by race/ethnicity, based on data from NHANES 2009-2010. 87% of the population had levels BELOW the 40 ng/ml recommended for a healthy pregnancy.