The cooking oil I have in my cupboard is rapeseed oil. Is this not acceptable for the OMS diet either?
Rapeseed oil is not recommended.
Rapeseed oil contains a lot of polyunsaturated fats, but these are mostly Omega-6 fatty acids, which have an inflammatory effect, whereas flaxseed oil contains mostly Omega-3 fatty acids which are anti-inflammatory, and extra virgin olive oil (EVOO) contains mostly oleic acid, an mono-unsaturated fatty acid (= Omega-9 fatty acid), which is neutral in respect to inflammation, therefore better than the Omega-6-rich oils.
We want to shift the ratio of Omega-6 intake to Omega-3 intake more towards an Omega-3 intake, hence the Omega-3 rich flaxseed oil (which is never to be heated).
Try to stop using â€œcooking oilâ€! The only oil which stands moderate heating is EVOO. Therefore, EVOO is the oil recommended for baking (also of sweet cakes), but only at temperatures below 180Â° Celsius. For the preparation of fish you may grease a form with a little bit of EVOO, place the fish in it and bake it at maximum 180Â° Celsius, better: 150Â°â€“160Â° C. But other than that avoid heating EVOO! Do not fry or deep fry with any oil! Traditional frying is off for good! The solution is â€œstir-fryingâ€ without any oil in a good frying pan or â€œfryingâ€ with water. This works so well, that after a while you wonâ€™t miss your old ways of food preparation!
See also the post â€œHelpâ€ by Van_Mac of Tue Aug 30, 2016 (in the diet section of the forum):
and the answers which Veg and others gave to this post.
Good luck in exploring a new way of cooking!