The Nutrition Assessment shared resource (NASR) provides comprehensive support to investigators who include dietary assessment in their research protocols. Nutritional epidemiologists at Fred Hutch established this resource in 1993, which to date has provided support to hundreds of research studies. NASR is part of Collaborative Data Services, which provides technical support in the areas of project management and implementation, custom programming, and data management.
NASR uses the University of Minnesota’s Nutrition Data System for Research (NDSR) software for data entry and nutrient analysis. This is the most accurate and comprehensive software available for nutrition research.
Food Frequency Questionnaires (FFQ)
A food frequency questionnaire (FFQ) is a finite list of foods and beverages with response options to indicate usual frequency of consumption (and, in some cases, portion size) over a specified time period. It is the most common dietary assessment tool used in large epidemiologic studies of diet and health.
The NASR FFQ is self-administered. It asks participants to report the frequency of consumption and portion size of approximately 125 line items over a defined period of time (e.g., the last month; the last three months). Each line item is defined by a series of foods or beverages. Additional questions on food type and preparation methods enable the analysis software to further refine nutrient calculations. The database for the NASR FFQ is based on the nutrient strings in the Nutrition Data System for Research (NDSR) developed by the Nutrition Coordinating Center (NCC) at the University of Minnesota. See more about NDSR.
The GNA (General Nutrition Assessment) is the current version of the standard FFQ. It has a counterpart called the MNA, which is intended for use with male participants. The line items on these two questionnaires are identical, but the medium portion sizes are larger on the MNA.
The GNA/MNA can be completed in English or Spanish, and is available in two formats: an online questionnaire or paper booklets.
The online format of the FFQ is available through the secure NASR Portal. Participants are sent links to fill out the FFQ at their convenience on any internet-connected device (smartphone, tablet, laptop, or desktop computer). Study managers can track FFQ completion status and generate datasets as needed.
We offer two options for administering the online FFQ.
- Standard Setup. Study managers download a file containing a set of URL addresses (links) from the NASR Portal. Each unique link can be used by a participant to fill out the FFQ online. Study managers are responsible for distributing these links to participants and keeping records of the participant ID associated with each link. No participant contact information is kept in the NASR Portal.
- Setup for Large Longitudinal Studies. For large studies where FFQs are collected at multiple timepoints, we also offer an option where emails containing participant-specific links can be sent out automatically via the NASR Portal. These will occur on a regular schedule based on the study’s follow-up protocol and will be sent according to each participant’s individual timeline. Study managers are responsible for entering participant details (necessary contact information and relevant dates) into the NASR Portal as needed. Please contact us if you would like more information about this setup option.
Process At A Glance (Standard Setup)
- Fill out our Service Request Form to set up your study
- NASR will notify you when your study has been added to our secure Portal
- Download your list of URL links
- Send links to study participants, tracking which link goes to which participant
- Track FFQ completion through the Portal
- Generate datasets at any time
- Cite NASR in your publications
The FFQ is also available as a 12-page scannable booklet purchased from NASR. Batches of completed forms are sent back to NASR to be scanned (i.e., read by an optical scanner) and processed (to generate nutrient output). Processed FFQ output files are posted to the secure NASR Portal for download.
Process At A Glance
- Fill out our Service Request Form to set up your study & purchase paper booklets
- Review & implement QA Guidelines
- Distribute booklets to participants
- Collect completed booklets
- Send completed booklets to NASR for scanning and processing (use Batch Cover Sheet)
- NASR will notify you when your datasets are ready to download from our secure Portal
- Cite NASR in your publications
For information about how FFQ data are processed, see the Technical Documentation.
FFQ nutrient datasets contain HEI scores as well as 170+ nutrients, nutrient ratios and other food components. View a sample data dictionary for information about the variables included in standard output datasets for the Online FFQ.
Custom services are available. For example:
- Customization of FFQs.
- Customized datasets (e.g., additional variables on Alternative Healthy Eating Index [AHEI] scoring).
- Individualized Participant Feedback (called the Nutrient Analysis Report or NAR) — a printable report giving the estimated dietary intake of specific nutrients for each study participant.
NASR periodically updates its standard FFQ to reflect U.S. food consumption patterns and major changes in the marketplace.
The previous version of the standard FFQ was the GSEL (and its counterpart, the MSEL). The GSEL/MSEL was designed in 2001 under the direction of Fred Hutch nutritional scientists and epidemiologists and was based on the questionnaires used in two large NIH-funded studies, the Selenium and Vitamin E Cancer Prevention Trial (SELECT) and the VITamins and Lifestyle study (VITAL). The GSEL/MSEL was updated in late 2010 to become the GNA/MNA.
The validation study by Patterson et al, using the WHI FFQ, is an excellent approximation of the inter-method reliability of the standard FFQ. The questionnaires use the same format and analysis algorithms. There are some differences in FFQ items. The nutrient database systems are the same; however, the standard FFQ nutrient database is updated regularly as new nutrients/food components are added to NDSR and improved analytic methods result in updated nutrient composition data.
Reference: Patterson RE, Kristal AR, Carter RA, Fels-Tinker L, Bolton MP, Agurs-Collins T. Measurement characteristics of the Women's Health Initiative food frequency questionnaire. Annals of Epidemiology. 9: 178-187, 1999.
Paper FFQ Only:
Multiple-Day Food Records
A food record or food diary is a detailed description of all foods and beverages consumed over a period of three to seven days. The participant records foods and beverages at the time they are consumed. Completed food records are returned to NASR for processing. Food record nutrient datasets contain HEI scores as well as 170+ nutrients, nutrient ratios and other food components.
NASR’s food record is available in two formats: an online form or paper booklets. Both formats are currently available in English; Spanish versions can be available upon request.
Online food records are administered via the secure NASR Portal. Participants are sent a link to fill out the food record on any internet-connected device (smartphone, tablet, laptop, or desktop computer). Study staff can view food record entries and track completion status in real time via the NASR Portal. Completed food records are submitted to NASR for processing using the University of Minnesota’s Nutrition Data System for Research (NDSR).
Online Food Record Summary Sheet
Process at a Glance
- Fill out our Service Request Form to set up your study
- NASR will notify you when your study has been added to our secure Portal
- Add participant IDs to Portal
- Send food record links to participants
- Track food record completion and view food record entries through the Portal
- Submit food records to NASR for processing
- When data collection is complete, NASR runs nutrient dataset and posts to Portal (interim datasets available upon request)
- Cite NASR in your publications
Paper booklets are purchased from NASR. Study staff send the food record, as completed by the participant, to NASR for processing using NDSR.
Multiple-Day Food Record Booklet Sample - NASR's multiple-day food record booklet is available for purchase.
Process At A Glance
- Fill out our Service Request Form to set up your study & purchase paper booklets
- Distribute booklets to participants
- Collect completed booklets
- Send completed booklets to NASR for processing
- When data collection is complete, NASR runs nutrient dataset and posts to Portal (interim datasets available upon request)
- Cite NASR in your publications
NASR offers training for study staff to ensure accurate data collection. Trainings can be done individually or in group format. Generally, training covers how to instruct participants to complete a food record and/or how to administer the online food record. Customized training options are available.
Dietary Recalls
The 24-hour dietary recall is an in-depth interview that collects detailed information on all foods and beverages consumed by a participant during the previous 24 hours. These recalls are best administered unannounced (not scheduled on a specific day) so that participants do not change their eating habits in anticipation of the interview.
Trained and certified NASR staff conduct recalls over the telephone and enter data directly into the University of Minnesota’s Nutrition Data System for Research (NDSR) software. This interactive software prompts the interviewer to probe for detailed information about specific quantities, brand names and cooking methods for each food. The accuracy of the recall is highly dependent upon participant memory and the communication skills of both the participant and the interviewer. For this reason, NASR interviewers are specially trained to effectively probe for information using neutral and non-leading questions. All participants receive a serving size booklet prior to the call.
Serving Size Booklet Sample - NASR's serving size booklet is available for purchase.
Short Food Questionnaires
Short questionnaires to assess the consumption of specific foods and/or specific food-related behaviors have been developed and are available for use in research studies. Please contact us at nasr@fredhutch.org to obtain permission and pricing information.
BSQ
The Beverage and Snack Questionnaire (BSQ) is a 19-item questionnaire used to assess frequency of consumption of beverages such as soft drinks, energy drinks, juice, fruit drinks and milk, plus consumption of salty and sweet snacks such as cookies and candy. The response options inquire whether the food or beverage was consumed at school or away from school. The questionnaire was developed for use with youth (ages 10-18 years).
Reference: Neuhouser ML, Lilley S, Lund A, and Johnson DB. Development and validation of a beverage and snack questionnaire for use in evaluation of school nutrition policies. J Am Diet Assoc 2009; 109 (9): 1587-1592.
BSQ2
A second Beverage and Snack Questionnaire (BSQ2) is also available. The BSQ2 was developed in conjunction with the Network for a Healthy California. It differs slightly from the validated version in that a) the milk questions have been changed in order to separate flavored milks from regular milks, for investigators interested in overall sweetened beverage consumption and b) sweetened coffee and tea beverages and plain water have also been added.
The Caffeine Questionnaire (Supplemental Beverage Questions) is a list of 13 caffeine-containing beverages available to supplement the general Food Frequency Questionnaire on the dietary intake of caffeine. It can also be used independently of the general FFQ.
Reference: Song YJ, Kristal AR, Wicklund KG, Cushing-Haugen KL, Rossing MA. Coffee, tea, colas, and risk of epithelial ovarian cancer. Cancer Epidemiol Biomarkers Prev 2008; 17(3): 712-6.
The Fat-Related Diet Habits Questionnaire was designed to assess eating behaviors associated with a low-fat diet.
There are five fat-related dietary patterns (factors): substitute specially manufactured low-fat foods; modify meats to be low in fat; avoid frying foods; replace high-fat foods with lower-fat foods such as fruits and vegetables; and avoid fat as a spread or flavoring.
Responses are on a four-point scale (1=usually or always, 2=often, 3=sometimes, 4=rarely or never), which are coded 1 through 4 to correlate positively with fat intake. Scoring the questionnaire will give a general idea about respondents' low-fat eating patterns; the lower the score, the lower the dietary fat intake.
References:
Kristal AR, Shattuck AL, Henry HJ. Patterns of dietary behavior associated with selecting diets low in fat: reliability and validity of a behavioral approach to dietary assessment. J Am Diet Assoc 1990; 90: 214-20.
Shannon J, Kristal AR, Curry SJ, Beresford SA. Application of a behavioral approach to measuring dietary change: the fat- and fiber-related diet behavior questionnaire. Cancer Epidemiol Biomarkers Prev 1997; 6(5): 355-61.
The Mindful Eating Questionnaire (MEQ) is a 28-item scale developed to measure the construct of mindful eating, a nonjudgmental awareness of the physical and emotional sensations associated with eating.
Reference: Framson C, Kristal AR, Schenk JM, Littman AJ, Zeliadt S, Benitez D. Development and validation of the Mindful Eating Questionnaire. J Am Diet Assoc 2009; 109:1439-1444.
The Soy Questionnaire was developed to assess the patterns and correlates of soy consumption among postmenopausal women in the United States. It asks questions about the consumption of 20 soy foods and supplements.
Reference: Frankenfeld CL, Patterson RE, Horner NK, Neuhouser ML, Skor HE, Kalhorn TF, Howald WN, Lampe JW. Validation of a soy food frequency questionnaire and evaluation of correlates of plasma isoflavone concentrations in postmenopausal women. Am J Clin Nutr 2003; 77:674-80.
Nutrition Data System for Research
NASR uses the Nutrition Data System for Research (NDSR) developed by the Nutrition Coordinating Center (NCC) at the University of Minnesota for the collection of 24-hour dietary recalls and the analysis of food records, menus, and recipes. In addition, the database for the food frequency questionnaires developed by Fred Hutch is based on the nutrient strings in NDSR.
NDSR uses the United States Department of Agriculture Nutrient Database for Standard Reference and its periodic revisions as the primary data source and is supplemented by information from the scientific literature and food manufacturers. The output provides values for 170+ nutrients, nutrient ratios, and other compounds.

Contact Us
Mailing Address:
Nutrition Assessment (NASR)
Fred Hutchinson Cancer Center
1100 Fairview Ave. N.
P.O. Box 19024
M1-B208
Seattle, WA 98109-1024

General NASR Information
Pricing & Custom Services
For a cost estimate, please fill out our Service Request Form.
For custom services, please email your inquiry to nasr@fredhutch.org.
Citing NASR
Please cite both NASR and NDSR software in publications describing research which uses our services. Learn more about citing NASR.
Publications Supported by NASR
Review a list of publications supported by NASR.