AAFCS CNWE study materials
AAFCS CNWE study resources

AAFCS CNWE key terms

AAFCS CNWE · Get comfortable with the vocabulary.

MyPlate

A visual food guidance tool that divides a plate into sections for fruits, vegetables, grains, protein foods, and dairy to show recommended proportions of each food group at a meal.

Related: Dietary Guidelines for Americans, Nutrient density
Dietary Guidelines for Americans

A set of evidence-based nutrition recommendations updated every five years by U.S. federal agencies to guide food choices, dietary patterns, and public health policy.

Related: MyPlate, Added sugars
Nutrient density

The amount of vitamins, minerals, and other beneficial nutrients a food provides relative to its calories, so foods high in nutrients and low in calories are considered nutrient dense.

Related: Empty calories, MyPlate
Empty calories

Calories from foods and drinks that supply energy mainly from added sugars and solid fats while contributing few or no essential nutrients.

Related: Nutrient density, Added sugars
Macronutrients

The nutrients the body needs in large amounts to provide energy and building materials: carbohydrates, proteins, and fats.

Related: Micronutrients, Essential amino acids
Micronutrients

Vitamins and minerals required by the body in small quantities for processes such as metabolism, growth, and immune function.

Related: Macronutrients, Bioavailability
Essential amino acids

The nine amino acids the human body cannot make in adequate amounts and therefore must obtain from food, primarily from protein-containing foods.

Related: Complete protein, Complementary proteins
Complete protein

A protein-containing food that supplies all nine essential amino acids in amounts sufficient to support human needs, typically from animal sources such as eggs, meat, and dairy.

Related: Essential amino acids, Complementary proteins
Complementary proteins

Two or more plant foods whose amino acid patterns differ but combine to provide all essential amino acids, such as beans eaten with rice.

Related: Complete protein, Essential amino acids
Bioavailability

The proportion of a nutrient in a food that is absorbed and available for the body to use, which can be affected by food form and by other substances eaten at the same time.

Related: Micronutrients, Fortification
Fortification

Adding a nutrient to a food that did not originally contain it, or adding it in greater amounts, to prevent or correct a nutrient deficiency in the population.

Related: Enrichment, Bioavailability
Enrichment

Replacing nutrients such as B vitamins and iron that were lost during processing of a grain, restoring them to levels close to those in the whole grain.

Related: Fortification, Whole grain
Whole grain

A grain product that retains the bran, germ, and endosperm in their original proportions, providing more fiber and micronutrients than refined grains.

Related: Enrichment, Soluble fiber
Soluble fiber

A type of dietary fiber that dissolves or forms a gel in water, slows digestion, and can help lower blood cholesterol and moderate blood glucose rises.

Related: Whole grain, Glycemic index
Glycemic index

A ranking of carbohydrate-containing foods based on how quickly they raise blood glucose compared with a reference food, useful in meal planning for blood sugar control.

Related: Soluble fiber, Portion size
Added sugars

Sugars and syrups added to foods and beverages during processing or preparation, as distinct from sugars naturally present in fruit, milk, and other whole foods.

Related: Empty calories, Dietary Guidelines for Americans
Portion size

The amount of a specific food a person chooses to eat at one time, which may differ from a standard serving and strongly influences total calorie intake.

Related: Serving size, Glycemic index
Serving size

A standardized amount of food used on nutrition labels and in dietary guidance to make nutrient comparisons consistent across products.

Related: Portion size, Nutrition Facts label
Nutrition Facts label

The standardized panel on packaged foods that lists serving size, calories, and amounts of key nutrients per serving to help consumers compare products.

Related: Serving size, Added sugars
Food insecurity

Limited or uncertain access to enough safe, nutritious food for an active, healthy life because of money or other resources.

Related: Food desert, Food bank
Food desert

A geographic area where residents have limited access to affordable, nutritious food, often because supermarkets are distant and few transportation options exist.

Related: Food insecurity, Food bank
Food bank

A community organization that collects, stores, and distributes donated food to local agencies such as pantries and shelters that serve people in need.

Related: Food insecurity, Food recovery
Food recovery

Collecting wholesome surplus food that would otherwise be discarded and redirecting it to people in need or to other beneficial uses.

Related: Food bank, Food waste
Food waste

Edible food that is discarded or lost at any point from production through consumption, representing wasted resources and avoidable environmental and economic costs.

Related: Food recovery, First in, first out
Hazard Analysis and Critical Control Point (HACCP)

A systematic food safety system that identifies biological, chemical, and physical hazards and sets controls at critical points in food production to prevent contamination.

Related: Temperature danger zone, Cross-contamination
Temperature danger zone

The range of roughly 40 to 140 degrees Fahrenheit in which bacteria multiply most rapidly, so perishable foods should be kept outside this range.

Related: HACCP, Two-hour rule
Two-hour rule

The food safety guideline that perishable foods left at room temperature should be discarded after two hours, or after one hour when the air is very hot.

Related: Temperature danger zone, HACCP
Cross-contamination

The transfer of harmful microorganisms or allergens from one food, surface, or utensil to another, often through shared cutting boards or unwashed hands.

Related: HACCP, Sanitizing
Sanitizing

Reducing microorganisms on food-contact surfaces to levels considered safe by public health standards, typically using heat or approved chemical solutions after cleaning.

Related: Cross-contamination, HACCP
First in, first out

A stock rotation practice in which the oldest food items are used first to reduce spoilage and waste and to keep stored food safe.

Related: Food waste, Food storage
Food storage

The practice of keeping foods at appropriate temperatures, humidity, and packaging to preserve quality, safety, and nutrient value until use.

Related: First in, first out, Temperature danger zone
Meal planning

The process of deciding in advance which foods will be served, in what amounts, and when, to meet nutritional needs, budget, and available time or equipment.

Related: Portion size, Food budget
Food budget

The amount of money set aside for buying food, which guides purchasing decisions and meal choices when planning for individuals, families, or programs.

Related: Meal planning, Unit pricing
Unit pricing

The cost of a product expressed per standard unit such as per ounce or per pound, allowing shoppers to compare the value of different package sizes.

Related: Food budget, Nutrition Facts label
Learning objective

A specific, measurable statement describing what learners should be able to do after instruction, guiding lesson design and assessment.

Related: Formative assessment, Bloom's taxonomy
Formative assessment

Ongoing evaluation during instruction used to monitor learning and adjust teaching, rather than to assign a final grade.

Related: Learning objective, Summative assessment
Summative assessment

Evaluation conducted at the end of a unit or course to measure overall achievement against learning objectives and to assign grades or certify competence.

Related: Formative assessment, Learning objective
Bloom's taxonomy

A hierarchical classification of cognitive skills ranging from remembering and understanding to applying, analyzing, evaluating, and creating, used to write objectives and design questions.

Related: Learning objective, Formative assessment
Health belief model

A behavior change framework suggesting that people act on health advice when they perceive a threat, believe the benefits outweigh barriers, and feel capable of acting.

Related: Self-efficacy, Stages of change model
Stages of change model

A framework describing behavior change as progression through stages: precontemplation, contemplation, preparation, action, maintenance, and sometimes termination.

Related: Motivational interviewing, Relapse
Self-efficacy

A person's belief in their own ability to carry out a specific behavior or task successfully, which strongly predicts whether they will attempt and sustain change.

Related: Health belief model, Motivational interviewing
Motivational interviewing

A collaborative counseling approach that uses open questions, reflective listening, and affirmation to strengthen a person's own motivation and commitment to change.

Related: Stages of change model, Self-efficacy
Relapse

A return to an earlier, less healthy behavior after a period of change, which is treated as a normal part of behavior change rather than as failure.

Related: Stages of change model, Self-efficacy
Wellness

An active, multidimensional process of pursuing health across physical, emotional, social, intellectual, occupational, spiritual, and environmental dimensions rather than merely the absence of disease.

Related: Health promotion, Prevention
Prevention

Actions taken to avoid disease or injury, categorized as primary (before disease), secondary (early detection), and tertiary (limiting disability from existing disease).

Related: Wellness, Health promotion
Health promotion

Planned activities and policies that enable people to increase control over and improve their health, often through education, environment changes, and community programs.

Related: Wellness, Prevention
Determinants of health

The range of personal, social, economic, and environmental factors that influence health status, including income, education, physical environment, and access to care.

Related: Health promotion, Food insecurity
Physical activity guidelines

Public health recommendations for the amount and types of movement that support health, typically including aerobic activity plus muscle-strengthening activities each week.

Related: Wellness, Prevention