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Nutrients 2015, 7(11), 9573-9589; doi:10.3390/nu7115486

The Ratio of Dietary Branched-Chain Amino Acids is Associated with a Lower Prevalence of Obesity in Young Northern Chinese Adults: An Internet-Based Cross-Sectional Study

1
Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin 150086, China
2
College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150086, China
*
Authors to whom correspondence should be addressed.
Received: 9 October 2015 / Revised: 3 November 2015 / Accepted: 11 November 2015 / Published: 18 November 2015
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Abstract

This study aims to examine the association between the ratio of dietary branched chain amino acids (BCAA) and risk of obesity among young northern Chinese adults. A total of 948 randomly recruited participants were asked to finish our internet-based dietary questionnaire for the Chinese (IDQC). Associations between dietary BCAA ratio and prevalence of overweight/obesity and abdominal obesity were analyzed. Furthermore, 90 subjects were randomly selected to explore the possible mechanism. Dietary BCAA ratio in obese participants was significantly lower than non-obese participants. We found negative correlations between the ratio of dietary BCAA and body mass index (BMI) (r = −0.197, p < 0.001) or waist circumference (r = −0.187, p < 0.001). Compared with those in the first quartile, the multivariable-adjusted OR (95% CI) of the 3rd and 4th quartiles of dietary BCAA ratio for overweight/obesity were 0.508 (0.265–0.972) and 0.389 (0.193–0.783), respectively (all p < 0.05). After stratification by gender, the significance still existed in the 3rd and 4th quartile in males and the 4th quartile in females. For abdominal obesity, the multivariable-adjusted OR (95% CI) of the 3rd and 4th quartile of dietary BCAA ratio were 0.351 (0.145–0.845) and 0.376 (0.161–0.876), respectively (all p < 0.05). This significance was stronger in males. Further studies indicated that dietary BCAA ratio was inversely associated with 2-h postprandial glucose (2 h-PG) and status of inflammation. In conclusion, a higher ratio of dietary BCAA is inversely associated with prevalence of obesity, postprandial glucose and status of inflammation in young northern Chinese adults. View Full-Text
Keywords: dietary BCAA; overweight/obesity; abdominal obesity; 2 h-PG; inflammation dietary BCAA; overweight/obesity; abdominal obesity; 2 h-PG; inflammation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Li, Y.-C.; Li, Y.; Liu, L.-Y.; Chen, Y.; Zi, T.-Q.; Du, S.-S.; Jiang, Y.-S.; Feng, R.-N.; Sun, C.-H. The Ratio of Dietary Branched-Chain Amino Acids is Associated with a Lower Prevalence of Obesity in Young Northern Chinese Adults: An Internet-Based Cross-Sectional Study. Nutrients 2015, 7, 9573-9589.

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