Nutrients part 1 - Atwater factors and NRVS

Question 1

Define nutrients

Answer 1

Molecules found in foods and beverages needed by the body for energy, growth and development

Question 2

State the 6 types of macronutrients

Answer 2

Lipids
Proteins
Catbohydrates
Minerals
Vitamins
Water

Question 3

Define macronutrients

Answer 3

Nutrients required in the body in large amounts that provide energy needed to maintain body functions and daily activities of life

Question 4

What are the 3 main macronutrients?

Answer 4

Proteins
Carbs
Fats

Question 5

Which macronutrient does not provide energy?

Answer 5

Water

Question 6

Which macronutrients provide energy?

Answer 6

Proteins
Carbs
Fats
Alcohol

Question 7

Define micronutrients

Answer 7

Nutrients required in the body in small amounts, do not provide energy but are one of the major groups of nutrients needed in the body

Question 8

What is the role of vitamins?

Answer 8

Energy production
Immune function
Blood clotting

Question 9

What is the role of minerals?

Answer 9

Growth
Bone health
Fluid balance

Question 10

Define atwater factor

Answer 10

Used to calculate metabolisable energy when the amount of macronutrient eaten is known

Question 11

Atwater factor for carbs

Answer 11

17 kj

Question 12

Atwater factor for fat

Answer 12

37 kj

Question 13

Atwater factor for alcohol

Answer 13

29 kj

Question 14

Atwater factor for protein

Answer 14

17 kj

Question 15

How do you work out the total percentage of energy coming from a macronutrient?

Answer 15

g of macronutrient x atwater factor kj divide by total energy x 100

Question 16

Define NRV’s

Answer 16

Set of recommendations for nutritional intake based on currently available scientific knowledge

Question 17

What people do the NRV’s apply to?

Answer 17

Nearly all healthy people (97-98%)

Question 18

How are the NRV’s acheived by?

Answer 18

Consuming a variety of foods

Question 19

Define EAR

Answer 19

Daily nutrient level estimated to meet the requirements of 1/2 of healthy people

Question 20

Define RDI

Answer 20

Average daily intake of nutrients sufficient to meet the requirements of nearly all healthy people

Question 21

Define AI

Answer 21

Average daily nutrient intake level used when EAR or RDI cant be determined

Question 22

Define EER

Answer 22

Average dietary energy intake predicted to maintain the energy balance of a healthy adult

Question 23

Define ADMR

Answer 23

The range of intake for a particular macronutrient

Question 24

ADMR for protein

Answer 24

15-25%

Question 25

ADMR for carbs

Answer 25

45-65%

Question 26

ADMR for fats

Answer 26

20-35%

Question 27

Define UL

Answer 27

Highest average daily nutrient intake level to pose no adverse health effects