The RDA (Recommended Dietary Allowance) of selenium for
pregnant women is 60 mcg per day, compared to 55 mcg per day
for non-
pregnant adults. Because selenium is found in a wide variety of commonly consumed foods, most people don't have any trouble getting enough, at least in the United States. People in other parts of the world, however, may be more likely to have selenium deficiencies, due to low soil levels and, therefore, low food levels of selenium.