title: Effect of an American Heart Association diet, with or without weight loss, on lipids in obese middle-aged and older men.
abstract: Forty-two obese [body mass index (kg/m2): 30 +/- 5; weight: 92.9 +/- 10.1 kg] men aged 60 +/- 9 y were recruited to determine the effects of an American Heart Association (AHA) diet, with and without weight loss, on lipoprotein lipids. All subjects entered a 3-mo, weight-maintaining AHA diet followed by either a 9-mo weight-loss (AHA + WL, n = 28) or a 9-mo AHA plus weight-maintenance (AHA + WM, n = 14) intervention. Baseline diets were high in fat (35 +/- 6% of energy) and cholesterol (380 +/- 158 mg/d), and low in dietary fiber (18 +/- 5 g/d). The 3-mo AHA diet resulted in an 11% decrease in plasma triacylglycerol (1.83 +/- 0.15 to 1.47 +/- 0.08 mmol/L, P < 0.05), a 16% decrease in plasma cholesterol (5.39 +/- 0.96 to 4.56 +/- 0.91 mmol/L, P = 0.0001), a 17% decrease in high-density-lipoprotein (HDL) cholesterol (1.09 +/- 0.23 to 0.91 +/- 0.18 mmol/L, P = 0.0001), and a 14% decrease in low-density-lipoprotein (LDL) cholesterol (3.47 +/- 0.83 to 2.98 +/- 0.78 mmol/L, P = 0.0001) The AHA + WL group lost 9.8 +/- 4.3 kg (P < 0.001, n = 28) and further reduced plasma triacylglycerol by 17% (P < 0.05), total cholesterol by 4% (P < 0.05), LDL cholesterol by 7% (P < 0.05), and significantly increased HDL cholesterol by 15% (P < 0.05) when compared with their 3-mo AHA-intervention values. These changes were significant (P < 0.05) when compared with the AHA + WM group, in whom lipoprotein lipids did not change.(ABSTRACT TRUNCATED AT 250 WORDS)
authors.affiliation: Department of Medicine, University of Maryland School of Medicine, Baltimore, USA.
authors.forename: J L
authors.initials: JL
authors.lastname: Dengel
authors.forename: L I
authors.initials: LI
authors.lastname: Katzel
authors.forename: A P
authors.initials: AP
authors.lastname: Goldberg
mesh_terms: D000368:Aged; D000572:American Heart Association; D015992:Body Mass Index; D002784:Cholesterol / Q000097:blood*; D008076:Cholesterol, HDL / Q000097:blood; D015930:Diet Records; D018752:Diet, Fat-Restricted; D004038:Diet, Reducing; D002149:Energy Intake; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000097:blood / Q000178:diet therapy*; D014280:Triglycerides / Q000097:blood; D014481:United States; D015431:Weight Loss / Q000502:physiology*
chemical_list: D008076:Cholesterol, HDL; D014280:Triglycerides; D002784:Cholesterol