If you ever get a chance, watch Lorenzo’s Oil.
The secret ingredient is euricic acid. That is what rape seed is high in in general, but canola only has traces of.
It is a great movie. Very moving, and based on a true story.
(In high doses euricic acid studies show it may case damage to cardiac muscle, even though the Indian subcontinent uses high euricic rape with no statistical cardiac problem blip )
/johnny