Chapter 2: Nutrition Tools - Standards and Guidelines Flashcards
What are the goals of Nutrient Recommendations?
maintain health and prevent/minimize disease
Dietary Reference Intakes
DRI
- Standards in U.S. and Canada
- Set values for: vitamins/minerals, carbohydrates, lipids, proteins, fiber, water, and energy
Nutrient Recommendations
Standards recommended for healthy people’s energy needs and nutrient intakes
Tools to help avoid undernutrition and overnutrition
Daily Values
standards set for food and beverage labels
Recommended Dietary Allowances (RDA)
- meet nutritional needs of almost all healthy people
- solid experimental evidence
Adequate Intakes (AI)
scientific evidence and educated guesswork
RDA and AI
supports adequacy with daily amounts recommended
Tolerable Upper Intake Levels (UL)
- safety: supports moderation through caution against excess intake
- identify potentially toxic levels
- absence of UL (indicates insufficient data to establish)
Acceptable Macronutrient Distribution Ranges (AMDR)
- Healthful ranges for energy yielding nutrients
- Expressed as percentage of total calories
Carbohydrates: 45-65%
Fat: 20-35%
Protein: 10-35%
Estimated Average Requirements (EAR)
- Nutrition research and policy
- Assess nutrient intake of populations
- Set recommendations for different life stage and gender groups
Daily Values
- Comparing foods using nutrition facts
- Safety (ingredients lists provide opportunities to avoid food allergens
- Differences between individuals (recommendations for populations)
- Adequate intake over time (attempt to get 100% of DRI recommended intake)
- Characteristics of the DRI (optimum intakes, not minimums)
- DRI apply to healthy people only
Understanding the DRI Recommended Intakes
How the Committee Establishes DRI Values (An RDA Example)
- individual requirements are based on Balance Studies
- accounting for needs of the population (decision: choose value covering 97-98% of population
- Not generous (goal is to provide adequate calories not excess calories which might be stored and promote weight gain)
- Set to maintain healthy body weight
- Apply to individual of particular age, gender, height, weight, and activity level
Estimated Energy Requirements (EER)
- Found on food and beverage labels
- Reflect highest nutrient need among all population groups
- Allow comparisons among foods (not nutrient intake goals for individuals)
Daily Values
- Food based strategies for achieving the DRI values
- Promote health
- Physical activity important to maintaining healthy body weight
Dietary Guidelines for Americans
Current U.S. diet
- important nutrients undersupplied
- less healthful nutrients oversupplied
Dietary Guidelines for Americans
Themes
- Nation has serious health problems
- Large gap exists between actual and optimal food intake patterns
- Optimal food intake patterns are known
- Individuals can make the needed changes
- Public policy affects population wide behaviors
- Diet choices can affect the environment
Dietary Guidelines for Americans