Researchers studied selenium levels in beef raised in a low selenium region
of the United States. The goal of the study was to compare selenium levels
in the region-raised beef to selenium levels in cooked venison, squirrel,
and beef from other regions of the United States. The data in the Excel file
(se_level.xlsx or se_level.txt) are the selenium levels calculated on a dry
weight basis in mg=100 g for a sample of 53 region-raised cattle.