Critical Reasoning (CR) | Re: Barley contains the vitamin cytocin, but not in a form

Barley contains the vitamin cytocin, but not in a form the body can absorb. Pellagra is a disease that results from cytocin deficiency. When barley was introduced into southern Europe from the Americas in the eighteenth century , it quickly became a dietary staple and many Europeans who came to subsist primarily on barely developed pellagra. Pellagra was virtually unknown at that time in the Americas, however, even among people who subsisted primarily on barley.

Which of the following, if true,