See note to Omega 6 FAs about inadequate conversion of linoleic to linolenic acid by the body. The essential fatty acids from which the healthy body working at optimum efficiency should produce Omega 3 FAs. The conversion of linoleic acid to linolenic acid in the body is likely to be inhibited by diabetes, viral infections, alcohol, cholestrol, saturated fats and highly processed vegetable oil, such as is found in margarine. It is probable that most individuals' production of EPA and DHA is less than adequate. For this reason, ensuring an adequate supply of Omega 6 FAs is not sufficient - there is a definite need to ensure Omega 3 FAs are supplied in the diet.
Cholesterol is a different form of fat found in animal tissues only.
It can accumulate in arteries, leading to progressive reduction in the diameter of blood vessels and hence to a reduction in blood flow. This gives rise to heart attacks, angina, abnormal heart rhythms and heart failure, and may affect blood supply also to the brain, legs and kidneys. Cholesterol is dissolved and held in suspension in a free-flowing liquid state in the blood in the presence of adequate essential fatty acids. But when the EFAs, linoleic and linolenic acid, are in sufficient supply, the melting point of cholesterol is reduced to 32 deg F, well below body temperature. In this liquid state, cholesterol cannot be deposited as harmful arterial plaque and does not promote the degenerative diseases.