Exam 2 Flashcards
Why are vitamin defieciency disease no longer common in developed areas
Abundant food supply
fortification of food like iodized salt
most common vitamin deficiencies
Iron and Calcium
Health status of USA
most do not meet fruit or veg goals
cosumse 2x the recommended amt of sodium
39% adult pop obese
lack of breastfeeding
food insecurity
Where is dietary inadequacy most common
developing countries, impoverished areas
life-threatening sequela of dietary inadequacy
alterations in BP/ HR, hypoglycemia, depleted lean body mass, anemia, bone loss, psychological effects
Typical US eating patterns
Low veg, fruit, whole grain, dairy, seafood, oil
High refined grains, sat fats, sodium, meat/eggs
Comorbidity risk w/ obesity
Hypertension, DM type 2,, heart disease, arthritis, cancer
metabolic syndrome, insulin resistance
contributing factors to obesity
environment, race/ethnicity, socioeconomic status, genetics
healthy people 2030 nutrition
to reduce obesity in children/adults
address individual behaviors, and policies/environments that support these behaviors, in settings like school, worksites, healthcare organizations, communities
Dietary Guidelines for Americans
nutritional information for americans older than 2 y/o
Healthy eating across life span
focus on variety, nutrient density and amount
limit calories from sugars and fats and sodium
shift to healthier food and beverage choices
support health eating patterns
individually tailored
incorporate personal/cultural preferences
DRIs
Dietary reference intakes
focus on optimizing health and decreasing risk of chronic disease through nutrition
RDA
recommended daily allowance
AI
adequate intake
EAR
estimated average requirement
dietary supplements
vitamins, minerals, herbals, botanicals, amino acids, enzymes, probiotics, fish oils, powders, energy drinks, fiber
what vitamins have highest toxicity risk
fat soluble- ADEK
water soluble vitamins do not accumulate
When are dietary supplements recommended
when needs cant be met by diet food
Folic acid/iron during pregnancy
calcium, vitamin D, vitamin B for elderly
micronutrient overnutrition
can cause acute poisoning
large doses if vitamin A- teratogenic
high doses can suppress others: calcium suppress FE, K/E impact warfarin. FOlic acid can mask B12 deficiency
Nutrigenomics
nutritional genomics- studies the relationship between human genome, human nutrition and health
how genes and diet together may affect a persons health and risk of developing disease, such as cancer
2010 Food safety modernization act
FDA given new powers to police food safety
prevent food contamination
E.Coli
damages intenstines
hemolytic uremic syndrome hemorrhagic colitis
avoid undercooked meat, unpasteruized milk, unwashed foods
salmonellosis
abdominal cramping, severe n/v, diarrhea
avoid uncooked eggs, undercooked meat, unpasteurized milk
foodborne illness risk factors
food contamination
purchasing food from unsafe sources
failing to cook food adequately
holding food at incorrect temperature
poor hygiene
4 basic food safety principles
clean:wash hands, surfaces, discard of leftovers
separate: keep meats separate, wash fruits/vegetables
cook: proper temperature using food thermometer
chill: refrigerate within 2 hours