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- Title
Usual dietary glycemic load is associated with cardiometabolic risk factors in physically active Brazilian middle-aged men.
- Authors
Cocate, Paula G; Natali, Antônio J; de Oliveira, Alessandro; Hermsdorff, Helen Hermana M; Peluzio, Maria do Carmo G; Longo, Giana Z; Buthers, Jéssica M; dos Santos, Eliziária C; de Oliveira, Leandro L; Alfenas, Rita de Cássia G
- Abstract
INTRODUCTION: The effects of dietary glycemic load (GL) on cardiometabolic risk factors in physically active subjects are not completely known. OBJECTIVE: This cross-sectional study assessed the association of habitual dietary GL with cardiometabolic risk factors in physically active Brazilian middle-aged men. METHODS: One-hundred seventy-six subjects (Age: 50.6 ± 5.0 years, BMI: 25.5 ± 3.6 kg/m2) were evaluated. Anthropometry, lifestyle features, insulin resistance, oxidative stress biomarkers (8-iso-prostaglandin F2[alpha]; 8-iso-PGF2[alpha] and 8- hydroxydeoxyguanosine; 8-OHdG) and lipid profile were assessed. Dietary intake was estimated through a quantitative food frequency questionnaire. RESULTS: The dietary GL was positively associated with free fatty acid concentrations ([beta]= 0.311, r2 = 0.13, P-value = 0.034) and triglycerides/HDL cholesterol ratio ([beta] = 0.598, r2 = 0.19, P-value = 0.028) regardless of confounding factors (central obesity, red meat consumption, age and energy intake). The oxidative stress biomarker, 8-OHdG, was associated with habitual dietary GL ([beta] = 0.432, r2 = 0.11, P-value = 0.004), regardless of previous confounding factors plus excessive alcohol consumption, iron intake and current smoking status. CONCLUSIONS: The dietary GL was positively associated with lipid profile (free fatty acid concentrations and triglyce rides/HDL cholesterol ratio) and oxidative stress biomarker (8-OHdG). These results indicate potential harmfulness of diet with higher GL to cardiometabolic risk factors in middle-aged men, even in physically active individuals.
- Subjects
BRAZIL; HEART disease epidemiology; DIET; GLYCEMIC index; METABOLIC disorders; MOTOR ability; QUESTIONNAIRES; CROSS-sectional method
- Publication
Nutrición Hospitalaria, 2014, Vol 29, Issue 3, p444
- ISSN
0212-1611
- Publication type
Journal Article
- DOI
10.3305/nh.2014.29.2.7121