We investigated the association between nutrient biomarkers and dietary intake estimated using a brief self-administered dietary history questionnaire (BDHQ) for Japanese children and adolescents. Blood samples were collected from 398 subjects (5th graders of elementary school aged 10-11 y, and 2nd graders of secondary schools aged 13-14 y) randomly selected from among students in Shunan City, ...

Food frequency questionnaires are commonly used to assess habitual food intake. Although food frequency questionnaires are known to produce measurement error, the amount of error and effectiveness of correction methods are poorly understood. Twelve men from the Baltimore, MD/Washington, DC, area consumed an ad libitum diet for 16 weeks during the spring of 2001. At the end of the study period, ...

BACKGROUND The rise in the prevalence of asthma in western societies may be related to changed dietary habits. Epidemiological studies in children have shown inverse associations of asthma related outcomes with intake of fruits, vegetables, dairy and whole grain products, and fish. In contrast to most previous studies, we used both questionnaire and clinical data to define asthma. METHODS Int...

AIM To establish effective dietary self-management behavior for type II male and female diabetics, by focusing on how dietary intake and dietary self-management affect control indices of type II diabetics. METHODS The study group comprised 170 type II diabetics, 93 men (mean age, 63.1+/-8.8 years old) and 77 women (mean age 63.4 +/- 10.2 years old). The final analyses of data collected from s...

BACKGROUND Recently socioeconomic status (SES) and job stress index received more attention to affect mental health. Folate intake has been implicated to have negative association with depression. However, few studies were published for the evidence association together with the consideration of SES and job stress factors. The current study is a part of the Japanese study of Health, Occupation ...

objectives: this study was designed to assess nutritional and biochemical factor of magnesium in postmenopausal osteoporotic women. methods & materials: the population of this analytical cross- sectional study, was 60 postmenopausal osteoporotic women ,referred to rheumateology clinic of tabriz. nutritional intake was determined by 3 day food recall and food frequency questionnaire، individual ...

BACKGROUND Adequate maternal nutrient intake during pregnancy is important to ensure satisfactory birth outcomes. There are no data available on the usual dietary intake among pregnant women in rural China. The present study describes and evaluates the dietary intake in a cohort of pregnant women living in two counties of rural Shaanxi, western China. METHODS 1420 pregnant women were recruite...

This study aimed to develop and validate a de novo food frequency questionnaire for self-defined vegans in the United States. Diet histories from pilot samples of vegans and a modified 'Block Method' using seven selected nutrients of concern in vegan diet patterns, were employed to generate the questionnaire food list. Food frequency responses of 100 vegans from 19 different U.S. states were ob...

OBJECTIVE It has been difficult to determine the sources of U.S. dietary iodine. This study was designed to validate a self-administered questionnaire about dietary iodine sources. DESIGN We constructed a questionnaire to assess iodine intake in 46 healthy Boston-area adult volunteers. Questionnaire information was correlated with subjects' 24-hour food diaries. Spot morning urine cotinine (a...

OBJECTIVE To evaluate the association between fruit and vegetable intake during adolescence and early adulthood and risk of breast cancer. DESIGN Prospective cohort study. SETTING Health professionals in the United States. PARTICIPANTS 90 476 premenopausal women aged 27-44 from the Nurses' Health Study II who completed a questionnaire on diet in 1991 as well as 44 223 of those women who c...