Dietary Information - AS1 - N&FS

Umbrella term = DESIRABLE CONSUMPTION LEVEL OF NUTRIENTS BY (POPULATION GROUP) HEALTHY PEOPLE = assess energy requirements for large group 

* NOT FOR INDIVIDUALS= different needs = intake vary *

Activity & expenditure vary 

Safe intake= insufficient evidence to set DRV = level where no risk of deficiency & toxicity

Estimated average requirements ( ENERGY ) - EARS - meet needs of 1/2 population 

Reference nutrient intake ( PROTEIN & VIT & MINERALS ) - RNI - meet needs of 97%

Lower reference nutrient intake - LRNI - Meet needs of 3% 

Not for individuals:

• Pregnant = Ears inc by 200kcal in 3rd trimester ( foetus growth )
• Breastfeeding =inc energy requirements ( depend on duration )

• Amount of each nutrient needed = defines healthy diet
• Amount needed to prevent deficiency = NOT SAME as amount for optimal good health 
• Nutrients stored in body for times of need

Fat soluble vitamins (ADEK) = accumulate in body = can be toxic

SACN SET DRV = IRON & VITAMIN D & FOLATE

Nutrient requirement = amount of each nutrient needed

Depends on:

• Age
• Gender
• Activity
• Health

• asses diet intake of group

Ears based on :

• Lifestyle
• Activity

• Boys = require more 
•  >18 = require less
•  50 + = require less = lower BMR & activity

Ears =  BMR x Activity

* Learn table *

• Labels = provide info + help make better choices

• Policy =set targets for nutrient intake + public health assessments

• Health-care =Set standards for feeding in group facilities + set goals for vit & mineral intake

• Academic = help with labels + laws + lower disease risk

Factors affecting requirements :

• Age
• Gender
• Growth
• Pregnancy