Nutrients Science and Technology III. What is a Nutrient?

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NutrientsNutrients

Science and Technology IIIScience and Technology III

What is a Nutrient?What is a Nutrient?

substances the body needs forsubstances the body needs for

substances the body needs forsubstances the body needs for• energy (fuel)energy (fuel)

substances the body needs forsubstances the body needs for• energy (fuel)energy (fuel)• growth and repairgrowth and repair

There are SIX (6) basic There are SIX (6) basic nutrientsnutrients

1 CarbohydratesCarbohydrates

1 CarbohydratesCarbohydrates2 FatsFats

1 CarbohydratesCarbohydrates2 FatsFats3 ProteinsProteins

1 CarbohydratesCarbohydrates2 FatsFats3 ProteinsProteins4 VitaminsVitamins

1 CarbohydratesCarbohydrates2 FatsFats3 ProteinsProteins4 VitaminsVitamins5 MineralsMinerals

1 CarbohydratesCarbohydrates2 FatsFats3 ProteinsProteins4 VitaminsVitamins5 MineralsMinerals6 WaterWater

MACROnutrients and MACROnutrients and MICROnutrientsMICROnutrients

MICROnutrients and MICROnutrients and MACROnutrientsMACROnutrients

MicronutrientsMicronutrients are simple, soluble are simple, soluble nutrients, that the body can absorb nutrients, that the body can absorb and use right awayand use right away

MICROnutrients and MICROnutrients and MACROnutrientsMACROnutrients

Micronutrients are simple, soluble Micronutrients are simple, soluble nutrients, that the body can absorb nutrients, that the body can absorb and use right awayand use right away

MacronutrientsMacronutrients are complex are complex molecules, that have to be molecules, that have to be digested firstdigested first

MicroNutrientsMicroNutrients

Some nutrients are Some nutrients are simple simple moleculesmolecules that can be used that can be used directly by cellsdirectly by cells

Some nutrients are Some nutrients are simple simple moleculesmolecules that can be used that can be used directly by cellsdirectly by cells• vitaminsvitamins

Some nutrients are Some nutrients are simple simple moleculesmolecules that can be used that can be used directly by cellsdirectly by cells• vitaminsvitamins• mineralsminerals

Some nutrients are Some nutrients are simple simple moleculesmolecules that can be used that can be used directly by cellsdirectly by cells• vitaminsvitamins• mineralsminerals• waterwater

Some nutrients are Some nutrients are simple moleculessimple molecules that can be used directly by cellsthat can be used directly by cells

vitaminsmineralswater

MacroNutrientsMacroNutrients

Other nutrients need to be broken Other nutrients need to be broken down into simpler substances down into simpler substances before they can be absorbedbefore they can be absorbed

This is called This is called digestiondigestion

Macronutrients Digested Into:Macronutrients Digested Into:

carbohydratescarbohydrates

carbohydrates carbohydrates simple simple sugarssugars

proteinsproteins

proteinsproteins amino acidsamino acids

proteinsproteins amino acidsamino acids fatsfats

carbohydrates carbohydrates simple sugarssimple sugars proteinsproteins amino acidsamino acids fatsfats fatty acidsfatty acids

andandglycerolglycerol

carbohydrates carbohydrates simple sugarssimple sugars proteinsproteins amino acidsamino acids fatsfats fatty acidsfatty acids

andandglycerolglycerol

Building BlocksMacromolecules

How the body uses How the body uses nutrientsnutrients

ENERGYENERGY

carbohydratescarbohydrates

ENERGYENERGY

carbohydratescarbohydrates fatsfats

ENERGYENERGY

carbohydratescarbohydrates fatsfats proteinsproteins

GROWTH and REPAIRGROWTH and REPAIR

proteinprotein

proteinprotein mineralsminerals

CONTROL and MAINTENANCE of CONTROL and MAINTENANCE of body processesbody processes

vitaminsvitamins

vitaminsvitamins mineralsminerals

vitaminsvitamins mineralsminerals waterwater

vitaminsvitamins mineralsminerals waterwater fibrefibre

What’s FIBRE ??What’s FIBRE ??

Fibre is a kind of Fibre is a kind of carbohydratecarbohydrate which which cannotcannot be digested be digested

What’s FIBRE ??What’s FIBRE ??

Fibre is a kind of Fibre is a kind of carbohydratecarbohydrate which which cannotcannot be digested be digested

What’s FIBRE for ??What’s FIBRE for ??

Fibre retains some water in the Fibre retains some water in the contents of the large intestine contents of the large intestine (feces)(feces)

Fibre retains some water in the Fibre retains some water in the contents of the large intestine contents of the large intestine (feces)(feces) Did you really want to know that?

Fibre Fibre helps prevent constipationhelps prevent constipation

Fibre helps prevent constipationFibre helps prevent constipation Fibre Fibre reduces the risk of colon reduces the risk of colon

cancercancer

Fibre helps prevent constipationFibre helps prevent constipation Fibre reduces the risk of colon Fibre reduces the risk of colon

cancercancer Fibre Fibre helps lower blood levels of helps lower blood levels of

‘bad’ cholesterol‘bad’ cholesterol

Fibre retains some water in the Fibre retains some water in the contents of the large intestine (feces)contents of the large intestine (feces)

Fibre helps prevent constipationFibre helps prevent constipation Fibre reduces the risk of colon cancerFibre reduces the risk of colon cancer Fibre helps lower blood levels of ‘bad’ Fibre helps lower blood levels of ‘bad’

cholesterolcholesterol Fibre Fibre reduces the risk of heart attack reduces the risk of heart attack

and strokeand stroke

Pretty good for something that Pretty good for something that goes right through the digestive goes right through the digestive system, without getting digested system, without getting digested or absorbed!or absorbed!

The EndThe End

Nutrients Science and Technology III. What is a Nutrient?

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