U.S. Soybeans’ Lower Protein Content Not Unusual A Reuters article yesterday correctly indicated the average protein content of the 2017 U.S. soybean crop is below last year, but its suggestion that this was something new is inaccurate. The average protein and oil content levels of U.S. soybeans vary from year to year because of weather conditions during the growing season. Preliminary data from an annual crop quality survey done for the U.S. soybean sector noted that this year’s average protein content will likely be close to 34 percent, which is 0.5 percent less than last year.  It is normally lower in the western and northern regions of the soybean growing areas while higher in the eastern and southern parts. Since the...