Ch. 2 Tools for Healthy Eating Flashcards
Principles of healthy eating
- balance
- variety
- moderation
- nutrient density
- energy density
Balanced diet
healthy proportion of nutrients to maintain health and prevent disease
Variety
including a mixture of different food groups and foods within each group
- improves diet quality
- no single food or food group contains every single nutrient
Moderation
consuming reasonable but not excessive amounts of foods and nutrients
- limit portions of nutrient-dense and energy-dense foods
Nutrient density
measurement of nutrients in food compared to the kilocalorie content
- high in nutrients, low in kilocalorie
- low in fat and added sugar
- avocados, peanut butter, etc. are exceptions
Energy density
measurement of kilocalories in a food compared with the weight of the food
- most high-fat foods are energy dense
- eating low-energy-dense foods can promote weight loss (larger portions, improves satiety and decrease hunger)
Dietary reference intakes (DRIs)
provide recommendations on nutrient needs for individuals
- maintain good health
- prevent chronic diseases
- avoid unhealthy excesses
- organized by Institutes of Medicine)
- nutrient requirements differ based on: pregnancy, age, and gender
Dietary guidelines for Americans
provides broad dietary and lifestyle advice
MyPlate (Choosemyplate.gov)
helps individuals implement recommendations of the DRIs and Dietary Guidelines
Exchange system
groups foods according to macronutrient content; used for meal planning
Nutrition facts panel
provides Daily Values and information to help consumers choose healthy foods
DRIs five reference values
- Estimated average requirement (EAR)
- Recommended dietary allowance (RDA)
- Adequate intake (AI)
- Tolerable upper intake level (UL)
- Acceptable macronutrient distribution range (AMDR)
- RDA or AI (not both), the AMDR, and the UL are used to assess quality of meals
Nutrient requirements
amount of nutrient needed to prevent malnutrition or deficiency; reflected in DRIs
Estimated average requirement (EAR)
amount of nutrient projected to meet needs of 50% of healthy Americans by age and gender
- used to calculate RDAs
- measure the amount of nutrient a healthy individual absorbs, stores, and maintains daily
- DONT use this amount when planning your diet
Recommended dietary allowance (RDA)
recommendation for each nutrient that should meet the needs of nearly all (97% to 98%) of the individuals in a specific gender and age group
- higher than EAR
- no RDA»_space; AI
- aim for this amount
Adequate intake (AI)
amount of a nutrient that groups of similar individuals should consume to maintain good health
- average daily intake level
- aim for this amount if no RDA
Tolerable upper intake level (UL)
Highest amount of nutrient that is unlikely to cause harm if consumed daily
- consumption above this level increases risk of toxicity
- highest average daily intake
- do NOT exceed this amount on a daily basis
Acceptable macronutrient distribution range (AMDR)
healthy range of carbs, fats, and proteins
- carbohydrates: 45-65%
- fats: 20-35%
- proteins: 10-35%
- DO follow these guidelines
Estimated energy requirement (EER)
amount of daily energy needed to maintain healthy body weight and meet energy needs based on age, gender, height, weight, and activity level
- average daily energy intake for healthy adults
- individuals who consume more energy than needed will gain weight
Dietary guidelines for Americans
improve nutritional quality and reduce incidence of overnutrition (improve quality of diet and promote health)
- key recommendations and lifestyle advice to help Americans lead a healthy lifestyle
- updated every 5 years by USDA and DHHS
Food guidance systems
graphics used to summarize guidelines to healthy eating
MyPlate
visual depiction of the recommendations in the Dietary guidelines for Americans
- shows 5 food groups
- promotes proportionality, moderation, variety, and personalization
- provides information, tips, and tools to help people build a healthier diet
- provides personalized food plans
- help people create a well-balanced diet
Proportionality
relationship of one entity to another
Three recommendations from the Dietary Guidelines
- balance kilocalories
- increase fruits and vegetables, whole grains, and fat-free/low-fat milk
- reduce sodium and sugary drinks