Fatty Acids of Serum and Adipose Tissue in Six Groups Eating Natural Diets Containing 7 to 40 Per Cent Fat

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Abstract
Serum cholesterol, phospholipid and triglyceride, their attached fatty acids and adipose tissue fatty acids were measured in six groups. The diets eaten by these six groups varied widely in the amount and kind of fat, carbohydrate and protein. The serum cholesterol, phospholipid and triglyceride levels in each group were approximately proportional to the total fat intake. A high dietary carbohydrate level in two of the groups was not associated with a high serum triglyceride level. The relative percentages of fatty acids esterified with serum cholesterol and phospholipid were relatively constant regardless of diet. Those of serum triglyceride reflected the dietary fatty acids. The relative percentage of adipose tissue palmitoleic acid decreased and that of oleic acid increased with the total fat intake of each group. The percentage of adipose tissue linoleic acid varied from group to group, and it appeared to reflect the relative percentage, rather than absolute amounts, of dietary linoleic acid.

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