OBJECTIVE: Few observational studies have investigated dietary fiber intake and dietary glycemic index (GI) and glycemic load (GL) simultaneously in relation to obesity, particularly in non-Western populations. We examined the associations between dietary fiber intake and dietary GI and GL, and body mass index (BMI) in young Japanese women. DESIGN: Cross-sectional study. SUBJECTS: A total of 3931 female Japanese dietetic students aged 18-20 years from 53 institutions in Japan. METHODS: Dietary fiber intake and dietary GI and GL (GI for glucose=100) were assessed by a validated, self-administered, diet history questionnaire. BMI was calculated from self-reported body weight and height. RESULTS: Mean values of BMI, dietary fiber intake, dietary GI and dietary GL were 21.0 kg/m(2), 6.5 g/4186 kJ, 65.1 and 82.1/4186 kJ, respectively. White rice (GI=77) was the major contributor to dietary GI and GL (45.8%). After controlling for potential dietary and nondietary confounding factors, dietary fiber intake was negatively correlated with BMI (adjusted mean=21.1 kg/m(2) in the lowest and 20.7 kg/m(2) in the highest quintiles; P for trend=0.0007). Conversely, dietary GI and GL were independently positively correlated with BMI (20.8 and 21.2 kg/m(2); P for trend=0.03, and 20.5 and 21.5 kg/m(2); P for trend=0.0005, respectively). CONCLUSIONS: Dietary fiber intake showed an independent negative association with BMI, and dietary GI and GL showed an independent positive association with BMI among relatively lean young Japanese women.
OBJECTIVE: Few observational studies have investigated dietary fiber intake and dietary glycemic index (GI) and glycemic load (GL) simultaneously in relation to obesity, particularly in non-Western populations. We examined the associations between dietary fiber intake and dietary GI and GL, and body mass index (BMI) in young Japanese women. DESIGN: Cross-sectional study. SUBJECTS: A total of 3931 female Japanese dietetic students aged 18-20 years from 53 institutions in Japan. METHODS: Dietary fiber intake and dietary GI and GL (GI for glucose=100) were assessed by a validated, self-administered, diet history questionnaire. BMI was calculated from self-reported body weight and height. RESULTS: Mean values of BMI, dietary fiber intake, dietary GI and dietary GL were 21.0 kg/m(2), 6.5 g/4186 kJ, 65.1 and 82.1/4186 kJ, respectively. White rice (GI=77) was the major contributor to dietary GI and GL (45.8%). After controlling for potential dietary and nondietary confounding factors, dietary fiber intake was negatively correlated with BMI (adjusted mean=21.1 kg/m(2) in the lowest and 20.7 kg/m(2) in the highest quintiles; P for trend=0.0007). Conversely, dietary GI and GL were independently positively correlated with BMI (20.8 and 21.2 kg/m(2); P for trend=0.03, and 20.5 and 21.5 kg/m(2); P for trend=0.0005, respectively). CONCLUSIONS: Dietary fiber intake showed an independent negative association with BMI, and dietary GI and GL showed an independent positive association with BMI among relatively lean young Japanese women.
Authors: Michelle A Mendez; Maria Isabel Covas; Jaume Marrugat; Joan Vila; Helmut Schröder Journal: Am J Clin Nutr Date: 2008-12-03 Impact factor: 7.045
Authors: Mohammad Aghajanpour; Mohamad Reza Nazer; Zia Obeidavi; Mohsen Akbari; Parya Ezati; Nasroallah Moradi Kor Journal: Am J Cancer Res Date: 2017-04-01 Impact factor: 6.166
Authors: Buthaina E Alathari; David A Nyakotey; Abdul-Malik Bawah; Julie A Lovegrove; Reginald A Annan; Basma Ellahi; Karani S Vimaleswaran Journal: Nutrients Date: 2022-07-04 Impact factor: 6.706
Authors: Maria I Van Rompay; Nicola M McKeown; Carmen Castaneda-Sceppa; José M Ordovás; Katherine L Tucker Journal: J Nutr Date: 2012-12-26 Impact factor: 4.798