Association of meat and dairy consumption with normal weight metabolic obesity in men: the Qazvin Metabolic Diseases Study.
BACKGROUND
Insulin resistance (IR) is not limited to obese individuals. Normal weight individuals may also be insulin resistant. The aim of this study was to determine the association of lifestyle and diet patterns with IR in normal weight Iranian men.


METHODS
This cross-sectional study was conducted in 232 men with a body mass index lower than 25 kg/m(2) (aged 20-72 years old) between September 2010 and April 2011 in Qazvin, Iran. Metabolically obese normal weight (MONW) was defined as IR using the homeostatic model assessment (HOMA). The optimal cut point to diagnose IR was the 80th percentile of HOMA-IR values in normal subjects. The HOMA-IR cut point was 2.48. Dietary pattern was assessed by a semi-quantitative food frequency questionnaire. Data were analyzed using backward logistic regression and ANCOVA.


RESULTS
Fat and meat consumption and energy intake in subjects with MONW were more than subjects without MONW. Each serving of meat consumption was associated with three times increased risk of MONW (OR: 3.06), while each serving of dairy consumption was associated with 56 % lower risk of MONW with borderline significance (OR: 0.64). Adjusted mean of HOMA-IR in the first tertile of dairy consumption was significantly higher than other tertiles. Adjusted HOMA-IR value in the third tertile of meat consumption was significantly higher than the second tertile.


CONCLUSION
Higher meat consumption was associated with MONW in men. Higher meat consumption and lower dairy consumption were associated with higher means of HOMA-IR.
['Hashemipour|Sima|S|', 'Esmailzadehha|Neda|N|', 'Mohammadzadeh|Mahdieh|M|', 'Ziaee|Amir|A|']
D000328:Adult D000368:Aged D015992:Body Mass Index D003430:Cross-Sectional Studies D003611:Dairy Products D004032:Diet D006801:Humans D007333:Insulin Resistance D007492:Iran D008019:Life Style D008297:Male D008460:Meat D024821:Metabolic Syndrome D008875:Middle Aged D055815:Young Adult
Meat Insulin resistance Diet Body mass index Milk