Obesity Is A Major Health Concern Essay

1772 Words Oct 19th, 2014 8 Pages
EPIDEMIOLOGY
Cardiovascular disease remains the leading cause of death in many industrialized nations including the United States.1,2 Consequently, obesity is a major health concern due to its involvement in the development of many chronic diseases including cardiovascular disease, diabetes, cancer, and premature death.3 Worldwide approximately 937 million persons were overweight and 396 million obese in 2005.3 Moreover, in 2009 a shocking 68% of American adults were overweight or obese.3 As a result of the increasing obesity numbers, there are approximately 325,000 deaths annually in the United States due to obesity, and it accounts for about 5.5% of healthcare costs.4
Interestingly, current epidemiologic data shows that the percentage of energy as fat in the American diet has decreased while the percentage of energy as carbohydrates has increased; nevertheless, the prevalence of obesity continues to increase.4,5,6 For example, the prevalence of obesity among adults aged 20 to 74 has increased from 13% to 31% in the past four decades.4
Due to public awareness of the “obesity epidemic,” an increasing percentage of Americans are dieting. Current estimates suggest 45% of American women and 30% of American men diet to lose weight.5 For this reason, low-carbohydrate diets that are high in saturated fats and protein are experiencing widespread popularity.7

ETIOLOGY
Endothelial dysfunction precedes atherosclerotic CAD and is characterized by impaired vasodilation, increased…

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