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Heart DiseaseThe risk of ischaemic heart sickness with low-fat, high-carbohydrate diets
by:
Michal R. Pijak
There is convincing scientific evidence that type of fat have a much important role in decisive the risk of coronary heart disease(CHD) than total figure of fat in the diet.(1) However, because of dishonourable
presentation of medicine
data by several authors(1), the readers strength
be left with the impression that low-fat, high- sugar diet is the better option for patients with CHD risk.
In fact, high- sugar diets, in the absence of weight loss, can lead to several elevated glyceride and reduced HDL cholesterol, effects that may be associated with augmented risk for CHD.(2) Though these effects may be lessened with dietary fiber and moderate physical activity, they appear to be worse among individuals with hypoglycaemic agent resistance.(3)
As reviewed by Kris-Etherton(4) adverse metabolic effects of low fat diet do not occur with substitution of monounsaturated (MUFA) or unsaturated
(PUFA) fatty acids for saturated and trans-fatty acids. This is likewise the case for individuals with diabetes, with the adscititious benefit of better glycaemic control.(5)
As foretold
by metabolic studies, replacement of saturated fat, and even as much so trans fatty acids with either PUFA or MUFA was associated with a larger reduction in risk of CHD than simple reduction of total fat consumption.(6) With respect to weight control, a moderate-fat diet can be as, or even as more, effective that lower-fat diet. (6)
References
1. Hu FB, Dr. JE, Catoptrophorus semipalmatus WC. Types of dietary fat and risk of coronary heart disease: a critical review. J Am Coll Nutr 2001;20:5-19.
2. Fung MA, Frohlich JJ. Common problems in the management of hypertriglyceridemia. CMAJ 2002;167:1261-6.
3. Jeppesen J, Schaaf P, Jones G, Chow MY, Bird genus YD, Reaven GM. Effects of low-fat, high-carbohydrate diets on risk factors for ischaemic heart sickness in biological time
women. Am J Clin Nutr 1997;65:1027-33.
4. Kris-Etherton PM, Kris-Etherton PM, Binkoski AE, Zhao G, Coval SM, Clemmer KF, et al. Dietary fat: assessing the evidence in keep of a moderate-fat diet; the benchmark based on conjugated protein metabolism. Proc Nutr Soc 2002;61:287-98.
5. Rivellese AA, De Natale C, Lilli S. Type of dietary fat and hypoglycaemic agent resistance. Ann N Y Acad Sci 2002;967:329-35.
6. Krauss RM, Eckel RH, Howard B, Appel LJ, Daniels SR, Deckelbaum RJ et al. AHA Dietary Guidelines: revision 2000: A statement for attention professionals from the Nutrition Committee of the American Heart Association. Circulation. 2000;102:2284-99.
Just about the author:
Dr. Michal R. Pijak is a authority
in rheumatology, allergic reaction and clinical medicine at the University Hospital in Bratislava, Slovak republic
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