NUTRITIONAL REQUIREMENTS

Question 1

What are nutritional requirements?

Answer 1

Amount of each nutrient you need in your diet

Some people need more nutrients as they absorb/utilise nutrients less efficiently

Reduce diet related diseases

Vary between the individual and life stages (age/body size/sex/levels of activity)

Question 2

What are DRVs (dietary reference values)

Answer 2

Estimate amount of nutrients needed for a particular group not individuals to ensure adequate intakes of energy/nutrients

Prevents malnutrition

Developed by SCAN (medical committee)

Has 3 types :
EARs
RNIs
LRNIs

Question 3

What are EARs (estimated average requirements) - type of DRV

Answer 3

Estimate of average requirements for nutrients - 50% of population will need more, 50% will need less of average amount required

EARs show energy needed is higher for boys than girls

Energy - 2000 kcal

Fat - 35% of total food

Carbs - 50% of total food

NSP - 18g per day

Question 4

What are RNIs (reference nutrient intake) - Type of DRV

Answer 4

Amount of a nutrient that is enough for the majority of the population (97.5%)

Protein - 45g a day

Question 5

What are LNRIs (Lower reference nutrient intake) - type of DRVs

Answer 5

Amount of nutrient enough for small number of people (2.5%) who have small requirements

Majority of people need more

Question 6

What are GDA (guideline daily amounts)

Answer 6

Guidelines used on food labels for consumers to follow

Based on average requirements for an adult women (helps consumers to not avoid over consumption)

Aimed at healthy people maintaining a healthy weight

Varies with age/ gender/ level of activity/ weight