- Email: [email protected]
The Potential of a Single- Versus a Dual-isotope Prediction Equation for Added Sugar Consumption
MONDAY, OCTOBER 17
Poster Session: Food/Nutrition Science; Education; Management; Food Services/Culinary; Research The Potential of a Single- Versus a Dual-isotope Prediction Equation for Added Sugar Consumption Author(s): V. Hedrick1, T. Halliday1, B. Davy1, A.H. Jahren2, J. Zoellner1; 1Virginia Tech, 2 University of Hawaii at Manoa
Learning Outcome: Attendees will be able to describe a novel dietary assessment approach for assessing added sugar consumption, and understand the difference between d13C and d15N isotopes for use as dietary intake biomarkers.
Introduction: The d13C value of blood is a novel validated biomarker of added sugar (AS) intake. Results are mixed if a dual-isotope model (d13C and d15N) demonstrates improved prediction of AS intake over a single-isotope model (d13C). Predication equations were previously developed in an adult population with high AS intake (reference group).
Objective: To test the previously developed dual- and single-isotope prediction equations for AS intake in a different adult population (comparison group).
Methods: The comparison group of adults completed 3 24-hour dietary recalls and provided blood samples (plasma or serum), which were analyzed for d13C and d15N values using NA-SIMS. The reference equations were established using fingerstick d13C (-19.10.8&) and d15N (7.40.5&) blood samples from a population (4215yrs) with high AS intake (8959g). Statistical analyses included t-tests and correlations.
Results: The comparison group (5316yrs) had significantly lower (p<0.01) d13C (-19.50.8&) and d15N (9.10.3&) levels and consumed less AS (6943g;p¼0.017) than the reference group. Using the single-isotope equation, predicted AS intake was not significantly different from actual AS intake (difference¼-3.640.9g;p¼0.51). Predicted and actual AS intake was correlated (R2¼0.12;p<0.01) and similar to the reference group (R2¼0.09;p<0.01). When testing the dual-isotope equation, predicted AS was different from actual AS intake (difference¼1341g;p¼0.02), and the correlation did not improve (R2¼0.09;p<0.01).
Conclusion: d13C is able to successfully predict AS intake using a blood sample. Using a single-isotope prediction equation may be an alternative method to assessing AS intake.
Usability and Acceptability of a Mobile Application to Track Food Intake in a Research Context Author(s): S. Bucher Della Torre, I. Carrard, E. Farina, M. Kruseman; School of Health Sciences, Geneva, HES-SO University of Applied Sciences and Arts Western Switzerland
Learning Outcome: Attendees will be able to identify factors influencing usability and acceptability of a mobile application tracking food intake in a research context. Background: Valid and reliable food intake measurements are cornerstone for research in nutrition and dietetics. Mobile-based devices offer new opportunities to improve quality of data and simplify data collection. Our objective was to analyze the usability and acceptability of a newly developed mobile application tracking food and beverage intake in a research context. Methods: For research purposes, we developed a web-based mobile application “e-CA” (without any feedback for users) including 900 foods and beverages mostly consumed in the community. The items were classified in 14 categories and 60 sub-categories. Ten adults used e-CA for 4 consecutive days. A semi-structured interview investigated ease of use, barriers, strengths and weaknesses, convenience, perceived workload, errors in or induced by e-CA, conditions of use and suggestion of improvements. Interviews were recorded, anonymously transcribed in verbatim. Qualitative content analysis detected salient themes.
Results: A learning time was necessary at first. The main difficulties encountered were: portion size estimation, input of mixed dishes potentially leading to omission, items input duration and some missing foods. Participants found the application easy, practical (always carried), intuitive, modern, trendy and fun. Participants perceived this last aspect as the major added value of the application and therefore preferable to a paper-pencil food record. Conclusion: Mobile applications may improve food intake measures in research by increasing the pleasure to use the food record tool and reducing the perceived burden of participants. Funding Disclosure: Internal Research Grant HES-SO University of Applied Sciences and Arts Western Switzerland Internal Research Grant School of Health Sciences, Geneva, Switzerland
Funding Disclosure: 1R01CA154364-01A1; principal investigator: JZ This study was funded, in part, by a Graduate Student Research Grant from the Sports, Cardiovascular and Wellness Nutrition (SCAN) dietetic practice group of the Academy of Nutrition and Dietetics to T.H.
Updated Calcium & Vitamin D Food Frequency Questionnaire 1
1
2
1
Author(s): T. Holmes , J. Hubbard , N. Quinn ; Massachusetts General Hospital - Clinical Research Center, 2Children’s Hospital Boston/Pavilion 6 - Clinical Translational Study Unit
Learning Outcome: Readers will be able to recognize the importance of accurate values in a calcium and vitamin D FFQ. Additionally, readers will be able to recognize changes in market trends and the affect on research instruments and techniques. Readers will be able to identify whether their own research tools and techniques require revision in order to better meet project demands. Over recent years, the food industry and social preferences have changed. For example, yogurt variety has increased (i.e. Greek, almond milk, coconut milk, extra calcium, etc.), serving sizes have changed, and fortification is more common. Our goal was to validate a revised food frequency questionnaire (FFQ) for calcium and vitamin D to better reflect the current food market and preferences. Data was obtained from 31 adults (2 male, 29 female), with a mean age of 25, enrolled in the Boston area combined 2014-2015 Dietetic Internship class. Each intern simultaneously completed an updated calcium and vitamin D FFQ, 3-day food record and 24-hour recall. Nutrient analysis of the food record and recall were completed using nutrient analysis software Nutrient Data System for Research (NDSR) and the Food Processor Nutrition Analysis software (ESHA), respectively. FFQ calcium intake correlated positively: R2 - 0.71 (P < 0.0001) with NSDR and 0.56 (P < 0.0001) with ESHA intakes. Vitamin D also correlated positively: R2 - 0.86 (P < 0.0001) with NDSR and 0.53 (P < 0.0001) with ESHA. Based on the positive correlations of food record and recall, the updated FFQ representing food market choices is valid for the assessment of calcium and vitamin D intake. This 70-item FFQ provides an efficient methodology to assess calcium and vitamin D intake in individuals when intake is of clinical interest. This updated tool is useful to practitioners and researchers who seek an inexpensive, systematic and brief methodology to determine calcium and vitamin D intake. This is important given the overwhelming expansion of new foods to the marketplace as well as calcium and vitamin D fortification.
Funding Disclosure: Project described was supported by Grant Number 1UL1TR00110202, Harvard Catalyst j the Harvard Clinical and Translational Science Center, from the National Center for Advancing Translational Science
Use of Repeated Exposure and Child Centered Nutrition Phrases to Influence Children’s Intake of Fiber from Lentils Author(s): A. Roe1, J. Davis1, S. Johnson2, S. Ramsay1; 1University of Idaho, 2 University of Colorado School of Medicine, Anschutz Medical Campus Learning Outcome: Participants will gain knowledge of the use of repeated exposure and Child Centered Nutrition Phrases to increase children’s fiber intake from lentils. Background: Children in the US consume roughly half the Adequate Intake for fiber. Lentils are a fiber rich food uncommonly consumed by children. The role of repeated exposure (RE) to influence children’s intake of pulses and the efficacy of adults’ use of Child Centered Nutrition Phrases (CCNP) to influence children’s intake of fiber from lentils have not been evaluated. Objective: To determine whether 1) RE and 2) RE with CCNP (RE+CCNP) could influence children’s fiber intake from lentils. Methods: Children (3-6yr; N¼29) attending the University of Idaho Children’s Center were randomly assigned to RE or RE+CCNP and offered lentils (35.113.3g; 2.81.1g fiber) up to two times a week (12 RE). At baseline and final exposure a standard 1/2 cup of lentils was also offered (142.532.4g; 11.32.6g fiber total). Lentils were weighed pre/post intake (nearest 0.1g) as a proxy of intake. Fiber content of lentils was calculated using the USDA National Nutrient Database for Standard Reference, Release 27. Proportion eaten at baseline and final exposure was compared using SAS9.4 Proc Glimmix. Results: A significant main effect of exposure on fiber intake from lentils (baseline¼0.51.1g; final¼3.74.2g; p¼0.0035) was identified. Though change in fiber intake from baseline to final was greater in the RE+CCNP group (3.94.4 g) compared to the RE group (2.73.9 g), there was not a significant main effect of group on intake or significant group by exposure interaction (p>0.05). Conclusion: Use of repeated exposure of lentils increased young children’s fiber intake, and further research is needed to determine the effectiveness of repeated exposure and Child Centered Nutrition Phrases. Funding Disclosure: American Pulses Association, US Dry Pea and Lentil Council
September 2016 Suppl 1—Abstracts Volume 116 Number 9
JOURNAL OF THE ACADEMY OF NUTRITION AND DIETETICS
A-61
Poster Session: Food/Nutrition Science; Education; Management; Food Services/Culinary; Research The Potential of a Single- Versus a Dual-isotope Prediction Equation for Added Sugar Consumption Author(s): V. Hedrick1, T. Halliday1, B. Davy1, A.H. Jahren2, J. Zoellner1; 1Virginia Tech, 2 University of Hawaii at Manoa
Learning Outcome: Attendees will be able to describe a novel dietary assessment approach for assessing added sugar consumption, and understand the difference between d13C and d15N isotopes for use as dietary intake biomarkers.
Introduction: The d13C value of blood is a novel validated biomarker of added sugar (AS) intake. Results are mixed if a dual-isotope model (d13C and d15N) demonstrates improved prediction of AS intake over a single-isotope model (d13C). Predication equations were previously developed in an adult population with high AS intake (reference group).
Objective: To test the previously developed dual- and single-isotope prediction equations for AS intake in a different adult population (comparison group).
Methods: The comparison group of adults completed 3 24-hour dietary recalls and provided blood samples (plasma or serum), which were analyzed for d13C and d15N values using NA-SIMS. The reference equations were established using fingerstick d13C (-19.10.8&) and d15N (7.40.5&) blood samples from a population (4215yrs) with high AS intake (8959g). Statistical analyses included t-tests and correlations.
Results: The comparison group (5316yrs) had significantly lower (p<0.01) d13C (-19.50.8&) and d15N (9.10.3&) levels and consumed less AS (6943g;p¼0.017) than the reference group. Using the single-isotope equation, predicted AS intake was not significantly different from actual AS intake (difference¼-3.640.9g;p¼0.51). Predicted and actual AS intake was correlated (R2¼0.12;p<0.01) and similar to the reference group (R2¼0.09;p<0.01). When testing the dual-isotope equation, predicted AS was different from actual AS intake (difference¼1341g;p¼0.02), and the correlation did not improve (R2¼0.09;p<0.01).
Conclusion: d13C is able to successfully predict AS intake using a blood sample. Using a single-isotope prediction equation may be an alternative method to assessing AS intake.
Usability and Acceptability of a Mobile Application to Track Food Intake in a Research Context Author(s): S. Bucher Della Torre, I. Carrard, E. Farina, M. Kruseman; School of Health Sciences, Geneva, HES-SO University of Applied Sciences and Arts Western Switzerland
Learning Outcome: Attendees will be able to identify factors influencing usability and acceptability of a mobile application tracking food intake in a research context. Background: Valid and reliable food intake measurements are cornerstone for research in nutrition and dietetics. Mobile-based devices offer new opportunities to improve quality of data and simplify data collection. Our objective was to analyze the usability and acceptability of a newly developed mobile application tracking food and beverage intake in a research context. Methods: For research purposes, we developed a web-based mobile application “e-CA” (without any feedback for users) including 900 foods and beverages mostly consumed in the community. The items were classified in 14 categories and 60 sub-categories. Ten adults used e-CA for 4 consecutive days. A semi-structured interview investigated ease of use, barriers, strengths and weaknesses, convenience, perceived workload, errors in or induced by e-CA, conditions of use and suggestion of improvements. Interviews were recorded, anonymously transcribed in verbatim. Qualitative content analysis detected salient themes.
Results: A learning time was necessary at first. The main difficulties encountered were: portion size estimation, input of mixed dishes potentially leading to omission, items input duration and some missing foods. Participants found the application easy, practical (always carried), intuitive, modern, trendy and fun. Participants perceived this last aspect as the major added value of the application and therefore preferable to a paper-pencil food record. Conclusion: Mobile applications may improve food intake measures in research by increasing the pleasure to use the food record tool and reducing the perceived burden of participants. Funding Disclosure: Internal Research Grant HES-SO University of Applied Sciences and Arts Western Switzerland Internal Research Grant School of Health Sciences, Geneva, Switzerland
Funding Disclosure: 1R01CA154364-01A1; principal investigator: JZ This study was funded, in part, by a Graduate Student Research Grant from the Sports, Cardiovascular and Wellness Nutrition (SCAN) dietetic practice group of the Academy of Nutrition and Dietetics to T.H.
Updated Calcium & Vitamin D Food Frequency Questionnaire 1
1
2
1
Author(s): T. Holmes , J. Hubbard , N. Quinn ; Massachusetts General Hospital - Clinical Research Center, 2Children’s Hospital Boston/Pavilion 6 - Clinical Translational Study Unit
Learning Outcome: Readers will be able to recognize the importance of accurate values in a calcium and vitamin D FFQ. Additionally, readers will be able to recognize changes in market trends and the affect on research instruments and techniques. Readers will be able to identify whether their own research tools and techniques require revision in order to better meet project demands. Over recent years, the food industry and social preferences have changed. For example, yogurt variety has increased (i.e. Greek, almond milk, coconut milk, extra calcium, etc.), serving sizes have changed, and fortification is more common. Our goal was to validate a revised food frequency questionnaire (FFQ) for calcium and vitamin D to better reflect the current food market and preferences. Data was obtained from 31 adults (2 male, 29 female), with a mean age of 25, enrolled in the Boston area combined 2014-2015 Dietetic Internship class. Each intern simultaneously completed an updated calcium and vitamin D FFQ, 3-day food record and 24-hour recall. Nutrient analysis of the food record and recall were completed using nutrient analysis software Nutrient Data System for Research (NDSR) and the Food Processor Nutrition Analysis software (ESHA), respectively. FFQ calcium intake correlated positively: R2 - 0.71 (P < 0.0001) with NSDR and 0.56 (P < 0.0001) with ESHA intakes. Vitamin D also correlated positively: R2 - 0.86 (P < 0.0001) with NDSR and 0.53 (P < 0.0001) with ESHA. Based on the positive correlations of food record and recall, the updated FFQ representing food market choices is valid for the assessment of calcium and vitamin D intake. This 70-item FFQ provides an efficient methodology to assess calcium and vitamin D intake in individuals when intake is of clinical interest. This updated tool is useful to practitioners and researchers who seek an inexpensive, systematic and brief methodology to determine calcium and vitamin D intake. This is important given the overwhelming expansion of new foods to the marketplace as well as calcium and vitamin D fortification.
Funding Disclosure: Project described was supported by Grant Number 1UL1TR00110202, Harvard Catalyst j the Harvard Clinical and Translational Science Center, from the National Center for Advancing Translational Science
Use of Repeated Exposure and Child Centered Nutrition Phrases to Influence Children’s Intake of Fiber from Lentils Author(s): A. Roe1, J. Davis1, S. Johnson2, S. Ramsay1; 1University of Idaho, 2 University of Colorado School of Medicine, Anschutz Medical Campus Learning Outcome: Participants will gain knowledge of the use of repeated exposure and Child Centered Nutrition Phrases to increase children’s fiber intake from lentils. Background: Children in the US consume roughly half the Adequate Intake for fiber. Lentils are a fiber rich food uncommonly consumed by children. The role of repeated exposure (RE) to influence children’s intake of pulses and the efficacy of adults’ use of Child Centered Nutrition Phrases (CCNP) to influence children’s intake of fiber from lentils have not been evaluated. Objective: To determine whether 1) RE and 2) RE with CCNP (RE+CCNP) could influence children’s fiber intake from lentils. Methods: Children (3-6yr; N¼29) attending the University of Idaho Children’s Center were randomly assigned to RE or RE+CCNP and offered lentils (35.113.3g; 2.81.1g fiber) up to two times a week (12 RE). At baseline and final exposure a standard 1/2 cup of lentils was also offered (142.532.4g; 11.32.6g fiber total). Lentils were weighed pre/post intake (nearest 0.1g) as a proxy of intake. Fiber content of lentils was calculated using the USDA National Nutrient Database for Standard Reference, Release 27. Proportion eaten at baseline and final exposure was compared using SAS9.4 Proc Glimmix. Results: A significant main effect of exposure on fiber intake from lentils (baseline¼0.51.1g; final¼3.74.2g; p¼0.0035) was identified. Though change in fiber intake from baseline to final was greater in the RE+CCNP group (3.94.4 g) compared to the RE group (2.73.9 g), there was not a significant main effect of group on intake or significant group by exposure interaction (p>0.05). Conclusion: Use of repeated exposure of lentils increased young children’s fiber intake, and further research is needed to determine the effectiveness of repeated exposure and Child Centered Nutrition Phrases. Funding Disclosure: American Pulses Association, US Dry Pea and Lentil Council
September 2016 Suppl 1—Abstracts Volume 116 Number 9
JOURNAL OF THE ACADEMY OF NUTRITION AND DIETETICS
A-61