Hmmmmm. See my new topic about oil and PSSM horses. Not sure about Canola oil (Goober was on vegetable oil) but I am now trying to find out of oil makes a difference in horses. If you have it available, put her on Legend Omega Plus instead of oil. It made an enormous difference to Da Goobs within 3 days
But, then again, I might be hearing hoofbeats and thinking zebras.