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HUNT141 > Nutrients part 1 - Atwater factors and NRVS > Flashcards

Nutrients part 1 - Atwater factors and NRVS Flashcards

1
Q

Define nutrients

A

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

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2
Q

State the 6 types of macronutrients

A

Lipids
Proteins
Catbohydrates
Minerals
Vitamins
Water

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3
Q

Define macronutrients

A

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

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4
Q

What are the 3 main macronutrients?

A

Proteins
Carbs
Fats

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5
Q

Which macronutrient does not provide energy?

A

Water

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6
Q

Which macronutrients provide energy?

A

Proteins
Carbs
Fats
Alcohol

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7
Q

Define micronutrients

A

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

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8
Q

What is the role of vitamins?

A

Energy production
Immune function
Blood clotting

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9
Q

What is the role of minerals?

A

Growth
Bone health
Fluid balance

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10
Q

Define atwater factor

A

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

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11
Q

Atwater factor for carbs

A

17 kj

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12
Q

Atwater factor for fat

A

37 kj

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13
Q

Atwater factor for alcohol

A

29 kj

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14
Q

Atwater factor for protein

A

17 kj

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15
Q

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

A

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

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16
Q

Define NRV’s

A

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

17
Q

What people do the NRV’s apply to?

A

Nearly all healthy people (97-98%)

18
Q

How are the NRV’s acheived by?

A

Consuming a variety of foods

19
Q

Define EAR

A

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

20
Q

Define RDI

A

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

21
Q

Define AI

A

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

22
Q

Define EER

A

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

23
Q

Define ADMR

A

The range of intake for a particular macronutrient

24
Q

ADMR for protein

A

15-25%

25
Q

ADMR for carbs

A

45-65%

26
Q

ADMR for fats

A

20-35%

27
Q

Define UL

A

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

HUNT141 (17 decks)

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