U.S. Household Food Security Survey Module
Also known as: HFSM, Food Security Survey Module, USDA Food Security Module
The HFSM is the official U.S. government measure of household food security, used in the Current Population Survey and National Health and Nutrition Examination Survey since 1995. The 18-item full form and 6-item short form assess the frequency and severity of food insecurity within a household based on direct reports of food access constraints, dietary adjustments, and hunger. The HFSM is the standard for U.S. food security surveillance and policy evaluation.
Read the full method
Sign in with a free account to read this section.
Method map
The neighbourhood of related methods — select a node to explore.
When to use it
The HFSM is the standard measure for U.S. food security surveillance and should be used in all household surveys assessing food access and nutrition security. Use in national surveys (Current Population Survey, National Health and Nutrition Examination Survey), state and local health departments for surveillance, evaluation of food assistance programs (SNAP, WIC, emergency food), and community health center screening. Appropriate for research examining associations between food insecurity and health outcomes (child development, adult chronic disease, mental health). Required for reporting to USDA-ERS and federal agencies for program evaluation and policy.
Strengths & limitations
- Official U.S. government standard; enables comparison across states, years, and with national benchmarks.
- Well-validated and widely used; 25+ years of data and research demonstrating reliability and validity.
- Short form (6 items) enables integration into other surveys with minimal respondent burden.
- Captures progression from mild anxiety to severe hunger; ordinal categories align with policy targeting.
- Sensitive to program interventions; documented changes in HFSM status with SNAP benefits and food assistance.
- Free and in public domain; no licensing costs; translations available.
- Categorical (ordinal) outcomes; cannot compute means or use parametric statistics on raw scores.
- Binary or frequency responses may miss nuance; respondents may hesitate to admit food insecurity due to stigma.
- Does not measure nutrient adequacy or food quality; assesses access to food, not diet quality.
- U.S.-specific language and reference foods; limited applicability outside United States without substantial adaptation.
- Relies on household reference person's knowledge; may underestimate if informant unaware of all members' food intake.
- Does not distinguish between transitory (short-term) and chronic (persistent) food insecurity; 12-month reference period masks seasonality.
Frequently asked
What is the difference between the 18-item full form and the 6-item short form, and which should I use?
The 18-item full form asks about household food insecurity, adult-specific hunger, and child-specific hunger; provides the most detailed assessment. The 6-item short form asks core items about food insecurity without hunger and omits some adult and child hunger items; suitable for surveys with space/time constraints. Use the full form if detailed assessment is goal (program evaluation, research). Use the short form if you need rapid screening or space is limited; note that the short form is less sensitive to mild food insecurity. Specify which version in reporting; scoring algorithms differ.
Can I use the HFSM outside the United States?
The HFSM is designed for the U.S. food environment and includes U.S.-specific references (e.g., 'balanced meals,' food benefit programs). Using HFSM in other countries without validation risks misinterpretation. For international use, employ the FAO Household Food Insecurity Access Scale (HFIAS), which is validated in 60+ countries and languages, or conduct local adaptation and validation of HFSM. If your study is in the U.S., use HFSM for comparability with national benchmarks.
Should I count food from food banks, SNAP, or government programs in the 12-month reference period?
Yes. The HFSM asks about food insecurity in the 'past 12 months,' capturing the household's total food access from all sources: purchased food, SNAP/WIC benefits, food bank, family support, etc. The questions ask whether the household 'had to reduce the size of meals' or 'cut back on meals,' implicitly referencing the gap between available food (from all sources) and what was needed. Food from assistance programs reduces food insecurity; if a household receives SNAP and reports no food insecurity, that reflects adequate total food access.
Is food insecurity status stable over a year, or can it change month-to-month?
The HFSM captures food insecurity status in the past 12 months and is not designed to detect month-to-month variation. However, food insecurity can fluctuate: a household may be food secure during months with regular income but food insecure during off-season months or after job loss. The HFSM single assessment provides a 'snapshot' of recent experience. For research needing temporal detail, consider monthly or quarterly follow-up surveys, but note that frequent assessment introduces respondent burden.
Sources
- Bickel, G., Nord, M., Price, C., Hamilton, W., & Cook, J. (1999). Guide to measuring household food security, revised 1999. U.S. Department of Agriculture, Food and Nutrition Service. link ↗
- U.S. Department of Agriculture, Food and Nutrition Service (2012). U.S. household food security survey module: Six-item short form and full 18-item form. Retrieved from https://www.ers.usda.gov/webdocs/DataFiles/ link ↗
How to cite this page
ScholarGate. (2026, June 3). U.S. Household Food Security Survey Module. ScholarGate. https://scholargate.app/en/public-health-nutrition/food-security-module
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- HDDSPublic Health Nutrition↔ compare
- HFIASPublic Health Nutrition↔ compare
- NLAIPublic Health Nutrition↔ compare