Similarly, margarines are also blends of liquid vegetable oils and partially hydrogenated vegetable oils. To keep saturated fatty acid content to a minimum use margarine that lists liquid vegetable oil first in its ingredient label. In general softer margarines are a better choice than those which are harder. Fish oils garnered much attention during the 1980s. At first glance they appeared to reduce heart disease risk by lowering fat levels in the blood.
Fish oils contain highly unsaturated fatty acids.
They are known as omega-3 fatty acids. In studies about the relationship of fish oils and coronary heart disease risk, researchers noted some unfavorable effects. One of the predominant effects was a delayed blood clotting time. Researchers also found that high intakes of omega-3 fatty acids did not always reduce blood cholesterol levels. It is premature to say that individuals would benefit by adding fish oil capsules to their diets.