Nutrition

Managing abdominally obese patients at increased cardiometabolic risk: the nutritional perspective


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Obesity is a fast-growing epidemic caused mainly by environmental influences and poor lifestyle choices. It is now accepted that obesity—abdominal obesity in particular—increases the prevalence of a cluster of metabolic abnormalities known as cardiometabolic risk factors/markers (1). Contributing to obesity’s rise is the fact that more and more people have sedentary lifestyles, eat refined diets, and consume energy-dense food of poor nutritional value. This “permissive” environment leads to a positive energy balance, weight gain, and obesity-related complications. Various therapies—including diet, physical exercise, and pharmacological treatments—can help reduce the incidence of obesity and its metabolic abnormalities. Since many patients with hypertension, diabetes, cardiovascular disease (CVD), or the metabolic syndrome are overweight/obese and have high-risk waistlines (2-4), weight loss should be the first-line therapy prescribed by health care professionals (5, 6). However, even though diet and diet/exercise combinations can help individuals lose weight, studies have consistently shown that when the diet/exercise prescription is stopped, any weight lost is regained progressively and long-term success is jeopardized if patients are not given sufficient support. 


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1. Després JP and Lemieux I. Abdominal obesity and metabolic syndrome. Nature 2006; 444: 881-7.
2. Poirier P, Lemieux I, Mauriège P, et al. Impact of waist circumference on the relationship between blood pressure and insulin: the Quebec Health Survey. Hypertension 2005; 45: 363-7.
3. Macdonald SM, Reeder BA, Chen Y, et al. Obesity in Canada: a descriptive analysis. Canadian Heart Health Surveys Research Group. CMAJ 1997; 157 Suppl 1: S3-9.
4. Johnson D, Prud'homme D, Després JP, et al. Relation of abdominal obesity to hyperinsulinemia and high blood pressure in men. Int J Obes Relat Metab Disord 1992; 16: 881-90.
5. Krauss RM, Eckel RH, Howard B, et al. AHA Dietary Guidelines: revision 2000: A statement for healthcare professionals from the Nutrition Committee of the American Heart Association. Circulation 2000; 102: 2284-99.
6. Eckel RH and Krauss RM. American Heart Association call to action: obesity as a major risk factor for coronary heart disease. AHA Nutrition Committee. Circulation 1998; 97: 2099-100.

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