rapeseed oil's big selling point, say converts, is its health-giving properties. As with olive oil, rapeseed oil contains Omegas 3, 6 and 9, essential fatty acids known to reduce cholesterol and maintain heart health, joint mobility and brain function. It is also a rich, natural source of vitamin E. High in mono-unsaturated fats, it is one of the few unblended oils that can be heated to deep-frying temperature without its antioxidants, character, colour and flavour spoiling. In short, it is one of best "good" oils