Nutrition and Growth Flashcards
What are essential nutrients needed for?
Replace losses and to grow new tissue
Why is nutrition important?
Energy needed to permit metabolic functions
Maintenance, growth ad development
Develop immunity
What are the phases of child growth?
Infant = nutrient led Child = growth hormone led Pubertal = sex steroid led
Are the phases of child growth clear cut?
No = they merge gradually over time
What is the lower reference nutrient intake (LRNI)?
Nutrient intake sufficient for the 3% of the population with the lowest needs
What is the estimated average requirement (EAR)?
Used to calculate energy requirements for population = about 50% of population will need more than EAR and 50% will need less
What is the reference nutrient intake (RNI)?
Nutrient intake sufficient for 97% of the population
As a population, is the RNI being met?
Yes = the mean protein intake for each age group is above the RNI
What is the RNI for protein?
Age 4-6 months = 12.7g/day
Age 7-9 months = 13.7g/day
Age 10-11 months = 14.9g/day
Age 12-18 months = 14.5g/day
How is the energy reference value calculated for children aged 0-12 months?
Energy deposited in new tissue + total energy expenditure
What is an energy deposit classed as in a child aged between 1-18 years?
1% increase in physical activity level
How is healthy body weight decided in children aged 1-18 years old?
EAR calculated at median activity level values
Calculated for less or more active children by the 25th and 75th centile physical activity levels respectively
What is the RNI of vitamin A and what are some dietary sources of it?
RNI = 350-400 micrograms/day
Found in cheese, eggs and yogurt
What is the RNI of vitamin C and what is it found in?
RNI = 25-30mg/day
Found in oranges, blackcurrants and potatoes
What is the RNI of vitamin D and what are some sources of it?
RNI = 7-8.5 micrograms/day
Gained from sunlight and small amounts from oily fish
Is the RNI being met for vitamin D?
No = deficiency was reported in all age groups on both breastfed and non-breastfed children
What supplements are recommended in 6 month children consuming less than 500ml/day of formula milk?
Vitamins A, C and D
When should breastfeeding babies start taking vitamin D supplements?
Should take 8.5-10mg a day by two weeks of age
How much vitamin D supplementation should breastfeeding mothers take?
10 micrograms per day
Is the RNI for sodium being met?
Yes = it is being exceeded in all age groups apart from children aged from 4-6 months
What is the RNI for sodium?
Age 4-6 months = 280mg
Age 7-9 months = 320mg
Age 10-11 months = 350mg
Age 12-18 months = 500mg