Self-reported rate of eating correlates with body mass index in 18-y-old Japanese women.
OBJECTIVE
To examine associations between rate of eating and macronutrient and dietary fiber intake, and body mass index (BMI).


METHODS
Cross-sectional study.


METHODS
A total of 1695 18-y-old female Japanese dietetic students.


METHODS
Macronutrient intake (protein, carbohydrate, and fat) and dietary fiber intake were assessed over a 1-month period with a validated, self-administered, diet history questionnaire. Body height and weight and rate of eating (according to five categories) were self-reported.


RESULTS
Among the nutrients examined, only dietary fiber intake weakly, but significantly, and negatively correlated with BMI in a multiple regression analysis. The rate of eating showed a significant and positive correlation with BMI. The mean BMI was higher by 2.2, 1.5, 1.0, and 0.5 kg/m(2) in the 'very fast', 'relatively fast', 'medium', and 'relatively slow' groups, respectively, compared with the 'very slow' rate of eating group. This correlation remained evident after adjustment for nutrient intake.


CONCLUSIONS
Rate of eating showed a significant and positive correlation with BMI, whereas only dietary fiber intake showed a weak correlation with BMI.
Sasaki
S
S
National Institute of Health and Nutrition, Tokyo, Japan. stssasak@nih.go.jp
Katagiri
A
A
Tsuji
T
T
Shimoda
T
T
Amano
K
K
D000293:Adolescent; D017195:Adolescent Nutritional Physiological Phenomena / Q000502:physiology*; D001827:Body Height / Q000502:physiology; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D003430:Cross-Sectional Studies; D004032:Diet; D004043:Dietary Fiber / Q000008:administration & dosage; D004435:Eating / Q000502:physiology*; D005260:Female; D006801:Humans; D005082:Physical Exertion / Q000502:physiology; D012044:Regression Analysis; D011795:Surveys and Questionnaires