scholarly journals Validation of energy intake during calorie restriction with the doubly labeled water method and changes in body composition

2007 ◽  
Vol 86 (4) ◽  
pp. 1251-1252
Author(s):  
Lyn Bowman ◽  
Anne B Loucks
Keyword(s):  
Body Composition ◽  
Energy Intake ◽  
Calorie Restriction ◽  
Doubly Labeled Water ◽  
Doubly Labeled Water Method

scholarly journals Approaches for quantifying energy intake and %calorie restriction during calorie restriction interventions in humans: the multicenter CALERIE study

2012 ◽  
Vol 302 (4) ◽  
pp. E441-E448 ◽  
Author(s):  
Susan B. Racette ◽  
Sai Krupa Das ◽  
Manjushri Bhapkar ◽  
Evan C. Hadley ◽  
Susan B. Roberts ◽  
...  
Keyword(s):  
Weight Loss ◽  
Body Composition ◽  
Energy Intake ◽  
Calorie Restriction ◽  
Reliable Estimate ◽  
Doubly Labeled Water ◽  
Short Term ◽  
Time Points ◽  
Energy Stores ◽  
Assessment Time

Calorie restriction (CR) is a component of most weight loss interventions and a potential strategy to slow aging. Accurate determination of energy intake and %CR is critical when interpreting the results of CR interventions; this is most accurately achieved using the doubly labeled water method to quantify total energy expenditure (TEE). However, the costs and analytical requirements of this method preclude its repeated use in many clinical trials. Our aims were to determine 1) the optimal TEE assessment time points for quantifying average energy intake and %CR during long-term CR interventions and 2) the optimal approach for quantifying short-term changes in body energy stores to determine energy intake and %CR during 2-wk DLW periods. Adults randomized to a CR intervention in the multicenter CALERIE study underwent measurements of TEE by doubly labeled water and body composition at baseline and months 1, 3, and 6. Average %CR achieved during the intervention was 24.9 ± 8.7%, which was computed using an approach that included four TEE assessment time points (i.e., TEEbaseline, months 1, 3, and 6) plus the 6-mo change in body composition. Approaches that included fewer TEE assessments yielded %CR values of 23.4 ± 9.0 (TEEbaseline, months 3 and 6), 25.0 ± 8.7 (TEEbaseline, months 1 and 6), and 20.9 ± 7.1% (TEEbaseline, month 6); the latter approach differed significantly from approach 1 ( P < 0.001). TEE declined 9.6 ± 9.9% within 2–4 wk of CR beginning and then stabilized. Regression of daily home weights provided the most reliable estimate of short-term change in energy stores. In summary, optimal quantification of energy intake and %CR during weight loss necessitates a TEE measurement within the first month of CR to capture the rapid reduction in TEE.

scholarly journals Estimation of Energy Intake by a Food Frequency Questionnaire: Calibration and Validation with the Doubly Labeled Water Method in Japanese Older People

Nutrients ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1546 ◽  
Author(s):  
Daiki Watanabe ◽  
Hinako Nanri ◽  
Hiroyuki Sagayama ◽  
Tsukasa Yoshida ◽  
Aya Itoi ◽  
...  
Keyword(s):  
Energy Intake ◽  
Correlation Coefficients ◽  
Total Energy Expenditure ◽  
The Body ◽  
Doubly Labeled Water ◽  
Food Frequency ◽  
Dietary Records ◽  
Poor Nutritional Status ◽  
Doubly Labeled Water Method ◽  
Japanese Older Adults

Accurate assessments of a target population’s energy intake (EI) are essential to prevent poor nutritional status. However, self-reported dietary records (DRs) or food frequency questionnaires (FFQs) are not always accurate, thereby requiring validation and calibration studies. This study aimed to validate the EI estimated by a FFQ using the doubly labeled water (DLW) method. Participants were 109 Japanese older adults (50 women and 59 men) aged 65–88 years. The EI was obtained by a DR and 47-item FFQ over 1 year. The total energy expenditure (TEE) was measured by DLW for ~2 weeks. EI was significantly lower than TEE (p < 0.01); ratios of EI assessed by DR and FFQ against TEE were 0.91 ± 0.17 and 0.82 ± 0.22, respectively. TEE was significantly and moderately correlated with the EI estimated by the DR (r = 0.45, p < 0.01) and FFQ (r = 0.37, p < 0.01). Furthermore, the EI correlation coefficients estimated by DR and the FFQ in this study were not significantly different (p = 0.46). The EI/TEE ratio was significantly and negatively correlated with the body mass index (BMI). In conclusion, EI estimated with a DR or FFQ modestly correlated with TEE, and calibrating EI with a developed equation in this study can attenuate the underestimation of EI.

scholarly journals Validation study of energy expenditure and intake during calorie restriction using doubly labeled water and changes in body composition

2007 ◽  
Vol 85 (1) ◽  
pp. 73-79 ◽  
Author(s):  
Lilian de Jonge ◽  
James P DeLany ◽  
Tuong Nguyen ◽  
Jennifer Howard ◽  
Evan C Hadley ◽  
...  
Keyword(s):  
Body Composition ◽  
Energy Expenditure ◽  
Calorie Restriction ◽  
Validation Study ◽  
Doubly Labeled Water
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