A common cause of inflammation is an excess of omega-6 fatty acids. Oils and fats derived from the seeds of temperate plants such as sunflowers and oilseed rape ('Canola' in North America, 'vegetable oil' in the UK) consist mainly of polyunsaturated fats, among which there is far more omega-6 than omega-3. An imbalance between these two essential dietary fats creates serious inflammation in the tissues, and three scientists won a Nobel Prize in 1982 for discovering this. Nowadays practically all the fats we consume, in margarine and similar spreads and in nearly all commercially baked bread, pastries, biscuits and cakes, are of this kind and produce this imbalance. That is why we are told to supplement our omega-3 levels by eating oily fish or by buying omega-3 oil supplements. But a more effective method is simply to consume less omega-6, by cooking at home and reverting to the kinds of animal based fats (lard, butter, full-cream milk, etc.) that people used to consume 75 years ago when coronary heart disease was almost unknown. These have a much healthier balance of omega-3 and omega-6 fats, especially when they come from animals that have grazed or foraged naturally.
Oxidation, the other cause of tissue damage, is also a feature of polyunsaturated fats. That is why vegetable oil and sunflower oil go rancid more quickly than the saturated and monounsaturated fats in olive oil, lard and dripping. Fats that go bad in the air can also go bad inside us!
Eating too much polyunsaturated fat from temperate seed oils is not the only dietary cause of heart attacks, but there isn't space in this brief article to explain what else is. For further information and advice on how to adopt eliminate virtually all causes of heart disease read 'Twenty-First Century Nutrition and Family Health'. This vitally important book will tell you all about cholesterol, as well as providing references to the scientific papers on which the above information is based. You can learn about the 25:45:30 Natural Health Diet, which balances omega fats and other essential nutritional components, and how to put the diet into practice in your family. And you can learn all you need to know about exercise, stress management, rest and relaxation in order to keep as fit and healthy as possible until you die. I have been running half marathons in my seventies, so it has worked for me so far!