For what it’s worth, one of the reasons the canola variety of rape was bred was to lower its erucic acid content, since studies in rats showed that erucic acid could be toxic to the heart. Those rat studies have since been called into question, since rats apparently handle erucic acid much more poorly than do most mammals. One source I read stated that the toxic effects observed in rats have not been observed in human beings.
“Rape” < Lat. rapa ‘turnip’, and the plant is related to kale, mustard, and broccoli in the family of the Brassicaea.