HEALTHY HEALTHY LIVINGLIVINGFORM 2FORM 2

FOOD – WHY IS IT FOOD – WHY IS IT IMPORTANT?IMPORTANT?

► To eat is one of the seven vital To eat is one of the seven vital functions a living thing doesfunctions a living thing does

► Food satisfies the hunger but most of Food satisfies the hunger but most of all it is a source from which one all it is a source from which one obtains: obtains:

ENERGYENERGY

NUTRIENTSNUTRIENTS

ENERGY ENERGY

►Without energy the body will shut Without energy the body will shut down as most chemical reactions will down as most chemical reactions will not be able to occur eg: not be able to occur eg:

►Without energy we are not able to:Without energy we are not able to:►MOVEMOVE►THINKTHINK►REACTREACT

NUTRIENSNUTRIENS

►They are chemicals They are chemicals ►Needed by the body to :Needed by the body to :

►LIVE AND GROWLIVE AND GROW►REGULATE BODY PROCESSESREGULATE BODY PROCESSES►REPAIR TISSUES REPAIR TISSUES

ESSENTIAL NUTRIENTSESSENTIAL NUTRIENTS

► Essential nutrients are:Essential nutrients are:►Obtained from external sources since the Obtained from external sources since the

body can’t produce sufficient amounts of itbody can’t produce sufficient amounts of it►Not all nutrients are required in the same Not all nutrients are required in the same

amounts.amounts.► Those needed in low amounts are:Those needed in low amounts are:►MICRONUTRIENTSMICRONUTRIENTS► Those needed in larger amounts are: Those needed in larger amounts are: ►MACRONUTRIENTSMACRONUTRIENTS

MAIN NUTRIENTSMAIN NUTRIENTS

► The nutrients most The nutrients most important for the important for the body to function body to function and grow are:and grow are:

► PROTEINSPROTEINS► FATSFATS► CARBOHYDRATESCARBOHYDRATES

CARBOHYDRATESCARBOHYDRATES

►They are very important sources of They are very important sources of energy and include:energy and include:

►GLUCOSEGLUCOSE►STARCHSTARCH► Important sources of carbohydrates Important sources of carbohydrates

include:include:►Pasta, Bread & PotatoesPasta, Bread & Potatoes

PROTEINSPROTEINS

►The main nutrients that help the body The main nutrients that help the body to :to :

►Build new cellsBuild new cells►Repair body tissueRepair body tissue►Good sources of proteins include:Good sources of proteins include:►Nuts, eggs and milk Nuts, eggs and milk

FATSFATS

►These are the nutrients which provide These are the nutrients which provide the most amount of energy the most amount of energy

►Too much of it is stored as excess Too much of it is stored as excess body tissue in the body body tissue in the body

►Sources of fat include:Sources of fat include:►Butter, cheese, Oils, certain animal Butter, cheese, Oils, certain animal

meatmeat

FATSFATS

►All of the kind of nutrients mentioned All of the kind of nutrients mentioned are important for the body and a are important for the body and a missing one will cause:missing one will cause:

►MALNUTRITION (when a nutrient is MALNUTRITION (when a nutrient is missing in the body.missing in the body.

►All of them are needed in MODERATE All of them are needed in MODERATE amounts.amounts.

VITAMINS VITAMINS

►These also are nutrients needed by the These also are nutrients needed by the body however they are required in body however they are required in lower amounts.lower amounts.

►Vitamins include:Vitamins include:►VITAMIN AVITAMIN A►VITAMIN CVITAMIN C►VITAMIN DVITAMIN D

Vitamin A:Vitamin A:

►Helps the eye sight and can be Helps the eye sight and can be obtained from sources like:obtained from sources like:

►CARROTSCARROTS►GREEN VEGETABLESGREEN VEGETABLES►LEGUMES (including beans, peas, LEGUMES (including beans, peas,

chickpeas)chickpeas)

Vitamin C:Vitamin C:

►Helps in the resistance of infections and Helps in the resistance of infections and increases the strength of the immune increases the strength of the immune systemsystem

►Can be obtained mostly from:Can be obtained mostly from:►Citrus fruits (oranges, lemons, Citrus fruits (oranges, lemons,

grapefruit)grapefruit)►Grapes, ApplesGrapes, Apples►A lack of vitamin C can result in Scurvy A lack of vitamin C can result in Scurvy

(bleeding of gums)(bleeding of gums)

Vitamin DVitamin D

►Responsible for strong bones and Responsible for strong bones and teeth and can be obtained from:teeth and can be obtained from:

►MilkMilk►Cod liver oilCod liver oil►TunaTuna►A poor supply of vitamin D can cause A poor supply of vitamin D can cause

Ricketts were the bones become softRicketts were the bones become soft

MINERALSMINERALS

►Like vitamins minerals are needed by Like vitamins minerals are needed by the body in small amounts.the body in small amounts.

► Important minerals include:Important minerals include:► Iron and CalciumIron and Calcium

CalciumCalcium

►Calcium is found mainly in dairy Calcium is found mainly in dairy products and it helps bones to get products and it helps bones to get stronger.stronger.

IronIron

► Iron is found mainly in meat and Iron is found mainly in meat and vegetables. vegetables.

►A low intake of iron can cause ANEMIAA low intake of iron can cause ANEMIA

(a decrease in the number of red blood (a decrease in the number of red blood cells)cells)

WATERWATER

►A great percentage of our body is A great percentage of our body is made up of water since most chemical made up of water since most chemical reactions require water to occurreactions require water to occur

► Intake of water should be frequently so Intake of water should be frequently so as to replace water that is as to replace water that is continuously being lost from our body continuously being lost from our body through sweat and drought through sweat and drought

A BALANCED DIETA BALANCED DIET

►Eating all of the food groups in Eating all of the food groups in MODERATE amounts is the healthy MODERATE amounts is the healthy way for the body to function correctly.way for the body to function correctly.

►Malnutrition is experienced if any of Malnutrition is experienced if any of the food groups is missing and the the food groups is missing and the body would be lacking important body would be lacking important chemicals it requires. chemicals it requires.