OMEGA 3,6. There are three essential fatty acids which are needed by the body and only available from our diet. These are linoleic acid (LA or Omega 6) and linolenic acid (LNA or Omega 3) which are all commonly contained in plant oils. Research suggests we need more linolenic acid. The essential fatty acid alpha-linolenic, an omega 3 fatty acid is found in linseed and soybean. Other important omega 3 oils EPA and DHA are found in fish. LA from which the body makes arachidonic acid can be found in soybean, safflower, sunflower, corn, wheatgerm and seasame oils.
VITAMINS. Oils are a good source of natural vitamin E and help the body absorb the fat soluble Vitamins A,D, E and K.
COLD PRESS. Cold pressed oils are preferred as high temperatures alter the oils and may make them unhealthy. Cold pressed olive oil contains high levels of monounsaturated fatty acids which do not adversely effect blood cholesterol.
So a little oil drizzled on salad and a fish supplement does you good.