I don't know what the email stuff was about but as far as canola oil goes there are three potential problems. One is erucic acid and all canola oil varieties are bred for low erucic acid so that isn't an issue. The other is genetically engineered canola oil - you may have a moral objection to it and many varieties are GM. Finally there is the risk of allergy as canola belongs to the mustard family - you should be aware of that - but again that is just a food allergy thing and is only an issue for a small number of people and is no different to any other food to which people may be allergic. Bottom line - don't worry!