The protein content of rye is about 17%, and the amino acid content is generally higher than that of common wheat, in which the phenylalanine content is about 6 times and the tryptophan content is about 15 times. Rye is also rich in minerals, and the mineral content is generally higher than that of ordinary wheat. Its calcium content is four times that of ordinary wheat, iron is 12 times that of ordinary wheat, and magnesium is 15 times that of ordinary wheat. In addition, it is also rich in selenium and iodine, so rye is also called calcium-enriched wheat, blood-enriched wheat and selenium-enriched wheat.

Second, dietary fiber

Dietary fiber is known as the "seventh nutrient" and is very beneficial to human health. Dietary fiber of rye has two characteristics. On the one hand, the dietary fiber content of rye is very high, which is about three times that of ordinary light-colored wheat, and far exceeds the dietary fiber content in foods that people often eat. On the other hand, the dietary fiber of rye ranks first among all cereal dietary fibers, far exceeding that of fruits and vegetables.