Skip to main content
. 2019 Jun 6;1446(1):81–101. doi: 10.1111/nyas.14128

Table 4.

Instruments to assess the theoretical amount of micronutrients received from different dietary sources and intervention programs

Instrument Focus of data collection Strengths Limitations Example references Notes on use for examining excessive intakes
24‐h dietary recall Total food and nutrient intakes on specific days Captures total dietary intake from all food sources Time and technical capacity required for collection and analysis of data 74, 108 Must collect multiple days of data and analyze data appropriately to estimate usual intake distributions. Can be combined with a module for supplements and exposure to other programs
Observed weighed diet records Total food and nutrient intakes on specific days Same as above, but likely more accurate Same as above; more time‐consuming data collection Same as above
Whole diet FFQ (semiquantitative) Total food and nutrient intakes during specified recall period Captures usual total nutrient intake, if appropriately designed and calibrated Formative research needed to define food list and portion sizes Can be combined with a module for supplements and exposure to other programs
Whole diet FFQ (qualitative) Patterns of food or nutrient consumption Captures usual patterns of intake Does not produce estimates of total intake Same as above
Micronutrient‐specific or food‐specific FFQ (qualitative or quantitative) Consumption of specific food or nutrient during specified recall period for selected nutrients consumed in just a few foods Quick to administer Does not capture total diet. Formative research needed to define food list 109 Same as above
Fortification Assessment Coverage Tool (FACT) Consumption of fortified or fortifiable foods; proxy indicators of micronutrient deficiency risk Relatively quick to administer Does not capture total diet 100, 105 Same as above
Fortification Rapid Assessment Tool Consumption of fortifiable foods Same as above Same as above 110 Same as above
Household Consumption and Expenditures Surveys Household apparent consumption of foods Large sample size and routine collection Does not provide information on individual food intake; purchased prepared foods often not adequately captured 80, 81, 111 Consider modifications to better capture individual household members’ exposure to intervention programs
Demographic and Health Surveys/Multiple Indicator Cluster Surveys modules Monitor population health, health services access, and related indicators Same as above; includes individual exposure to some programs: vitamin A supplements and iron‐folic acid tablets Very limited data on dietary intake Consider including indicators related to the coverage of country‐specific programs, including fortification
FAO Food Balance Sheets Assess availability of food commodities at the national level Data available annually for most countries Measures availability rather than consumption; no information on subnational patterns 112, 113 Not appropriate for assessing excessive intake
Dietary diversity score Brief questionnaire on food groups consumed by household or individual Rapid; easy to administer; validated against 24‐h recalls as predictor of micronutrient intake adequacy Does not provide descriptive information on types of foods consumed, or quantitative estimates of intake 114 Provides information on likely adequacy of population micronutrient intake from foods, but not appropriate for assessing excessive intake
Post‐Event Coverage Survey (PECS) Receipt of high‐dose vitamin A supplement Rapid; easy to administer Does not provide information on other interventions, risk factors for deficiency, or dietary intake 115, 116 Consider including indicators related to the coverage of country‐specific programs, including fortification
Fortification Monitoring and Surveillance (FORTIMAS) Monitoring and surveillance of fortification programs Relatively low‐resource approach for tracking progress of fortification programs Data collection focused only on fortification; data not representative 117 Interpret in combination with measures of dietary intake and program exposure