Effect of isoessential fatty acid lipids from animal and plant sources on cholesterol levels in mature male rats.

Isopolyunsaturated lipids isolated from plant and animal sources were included in the diets of mature male rats. Liver and blood serum cholesterol lowering effects were noted only in the lipid from the vegetable source. The authors suggest that the cholesterol lowering effect of vegetable oils is associated with the generally betaunsaturated triglycerides found therein.