Nutrition Terms Flashcards
Energy density
No. Of Kj per g of a food
The more Kj = more energy dense
Energy density of macronutrients
Fat yields 37kj/g Alcohol 27kj/g (not a nutrient) Carbs 16kj/g Protein 17kj/g Water 0kj/g
Nutrient density
Amount of a nutrient in a food relative to the foods energy value
Nutrient in 100g / energy in 100g
RDI FOR NUTRIENT/ RDI ENERGY
Nutrient density generally decreased when sugar/fat added
RDI
Recommended dietary intake - average daily intake level sufficient to meet needs of nearly all (97-98%) of healthy individuals in different age and gender groups
EAR
Estimated average requirement - daily nutrient level estimated to meet nutrient requirements of Half the healthy individuals in different age and gender groups
AI
Adequate intake - used when RDI and EAR cannot be determined based on experimental data or estimates assumed to be adequate
EER
Average dietary energy intake estimated to maintain energy balancing according to age, gender, weight, height and level of physical activity
UL
Upper level of intake - highest average daily nutrient intake level likely to pose no adverse health effects. As intake increases above UL, risk of health effects increases
NRVS are used…
- by nutrition and health professionals
- for meal planning or large scale catering
- in the food industry for labeling
- governments allowing public to make informed food choices
Energy dense food sources
Potato chips
Soft drinks
Chocolate
Nutrient dense food sources
Cereals
Fruit and veg
Boiled potato
WHAT ARE NUTRIENTS?
Chemical compounds needed for growth, energy and health
Macro & micro (large and small)
NRV?
Nutrient reference value - level of intake of essential nutrients adequate to meet nutritional needs preventing deficiency
