Polyunsaturated Fatty Acids
Polyunsaturated fats contain the least amount hydrogen and have two or more carbon double bonds.
Certain polyunsaturated fats cannot be synthesised by the body and so they have to be consumed in the form of food. They are sometimes referred to as Vitamin F. These so called essential fatty acids or “good” fats are divided into two groups:
- Omega-6-Fettsäuren found in corn or sunflower oil
- Omega-3-Fettsäuren found in linseed, Soya, walnut and rape seed oils. Also found in mackerel, salmon, herring, trout and tuna. It is said that Omega-3 fatty acids positively affect the cardiovascular system for example the probability of getting arteriosclerotic diseases is not as high. However there is no scientific evidence to prove this.
Essential fatty acids are especially needed for the break down of cell membranes. A lack of essential fatty acid can cause the active metabolism to come to a standstill.
There are no known deficiency symptoms in humans.
Fats That Heal, Fats That Kill: The Complete Guide to Fats, Oils, Cholesterol and Human Health
Foods with Polyunsaturated Fatty Acids include:
- Many vegetable oils like corn oil, sunflower, safflower oil, wheat germ oil,
- Certain types of fish
contain polyunsaturated fatty acids.
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Encyclopedia of Nutritional Supplements : The Essential Guide for Improving Your Health Naturally