HOMEWORK!- DUE MONDAY, HOMEWORK!- DUE MONDAY, AT THE LATEST!!!AT THE LATEST!!!

BRING IN MAGAZINESBRING IN MAGAZINES BRING IN FOOD ADS FROM BRING IN FOOD ADS FROM NEWSPAPER (SUNDAYS ARE THE NEWSPAPER (SUNDAYS ARE THE BEST!)BEST!)

GO TO THE GROCERY STORE AND GO TO THE GROCERY STORE AND PICK UP A FEW!PICK UP A FEW!

Nutrition For LifeNutrition For Life

Chapter 7Chapter 7

Section 1: Section 1: Carbohydrates, Fats Carbohydrates, Fats

and Proteinsand Proteins

What is nutrition?What is nutrition?

The science or study of food The science or study of food and the ways in which the and the ways in which the body uses foodbody uses food

What are nutrients?What are nutrients?

Substances in food that Substances in food that provide energy or help form provide energy or help form body tissues and are body tissues and are necessary for life and growthnecessary for life and growth

How many nutrients are How many nutrients are there?there?

There are 6 classes:There are 6 classes:– carbohydratescarbohydrates– fatsfats– proteinsproteins– vitaminsvitamins– minerals minerals – waterwater

What are What are carbohydrates?carbohydrates?

A class of energy giving A class of energy giving nutrients that include nutrients that include sugars, starches and fibersugars, starches and fiber

What are fats?What are fats?

A class of energy-giving A class of energy-giving nutrients that are also the nutrients that are also the main form of energy storage main form of energy storage in the bodyin the body

What are proteins?What are proteins?

A class of nutrients made up A class of nutrients made up of amino acids, which are of amino acids, which are needed to build and repair needed to build and repair body structures and to body structures and to regulate processes in the regulate processes in the bodybody

Why is it important to Why is it important to eat these nutrients?eat these nutrients?

To stay alive, healthy and To stay alive, healthy and growinggrowing– you must eat the right amount of you must eat the right amount of each nutrienteach nutrient

– if you eat incorrectly you can if you eat incorrectly you can loose/gain weight, not grow loose/gain weight, not grow properly, sometimes dieproperly, sometimes die

What happens if you What happens if you eat too much fat, eat too much fat, carbohydrates or carbohydrates or

proteins?proteins?

They are stored as fatThey are stored as fat– increases risk for heart increases risk for heart disease, high blood pressure, disease, high blood pressure, and other chronic diseases and and other chronic diseases and disordersdisorders

How you eat now can effect How you eat now can effect your health in the future!!!your health in the future!!!

Food is like what to Food is like what to our bodies?our bodies?

Food is our fuelFood is our fuel– food-> bodyfood-> body– gas-> cargas-> car

all the chemical processes all the chemical processes that happen in your body to that happen in your body to keep you alive and active is keep you alive and active is called called metabolismmetabolism

How do you measure How do you measure food?food?

Calories = energyCalories = energy Calories are NOT FAT!Calories are NOT FAT!

CARBOHYDRATES= 4 CAL/GCARBOHYDRATES= 4 CAL/G PROTEIN= 4 CAL/GPROTEIN= 4 CAL/G FAT= 9CAL/GFAT= 9CAL/G

Where can you find Where can you find Carbohydrates?Carbohydrates?

FruitFruit milkmilk cookiescookies potatoespotatoes

– all of these contain sugars!!!!all of these contain sugars!!!!

Are there different Are there different types of types of

carbohydrates?carbohydrates?

Yes!Yes!– SimpleSimple

glucoseglucose fructosefructose lactoselactose sucrosesucrose

– ComplexComplex starchstarch glycogenglycogen fiberfiber

Why is fiber Why is fiber important?important?

Isn’t used for energyIsn’t used for energy Can’t be digestedCan’t be digested Keeps your intestines healthy, Keeps your intestines healthy, prevents constipation, and may prevents constipation, and may help prevent colon cancer and help prevent colon cancer and heart diseaseheart disease

Helps trap cholesterol from food Helps trap cholesterol from food you eat (lowers blood you eat (lowers blood cholesterol)cholesterol)

Isn’t fat unhealthy?Isn’t fat unhealthy?

No!No!

Why do we need to eat Why do we need to eat fat?fat?

Body needs it in order to Body needs it in order to function properly!function properly!

Adds texture, flavor and Adds texture, flavor and aroma to our foodaroma to our food

Eating too much can cause: Eating too much can cause: weight gain, heart disease weight gain, heart disease and cancerand cancer

What types of fat are What types of fat are there?there?

Saturated fats: solid at room Saturated fats: solid at room temperaturetemperature– example: butterexample: butter

Unsaturated fats: liquid at room Unsaturated fats: liquid at room temperaturetemperature

Cholesterol: made by your body Cholesterol: made by your body (liver) and animal tissues (meat, (liver) and animal tissues (meat, fish, poultry, eggs, dairy fish, poultry, eggs, dairy products)products)

What are proteins?What are proteins?

Made of chains called amino Made of chains called amino acidsacids

muscle, skin, hair, nails muscle, skin, hair, nails made mostly of proteinmade mostly of protein

Why do we need Why do we need proteins?proteins?

Needed to form hormones, Needed to form hormones, enzymes, antibodies and other enzymes, antibodies and other important moleculesimportant molecules

if you eat too much it can be if you eat too much it can be stored as fatstored as fat

you need 20 different amino you need 20 different amino acids to make up body acids to make up body proteinsproteins

9 of the amino acids needed 9 of the amino acids needed to make up body protein to make up body protein cannot be made by our bodies cannot be made by our bodies (essential amino acids)(essential amino acids)

How much do I need?How much do I need?

CarbohydratesCarbohydrates– 45-65% of daily calories45-65% of daily calories

FatsFats– 25-35% of daily calories25-35% of daily calories

ProteinsProteins– 10-35% of daily calories10-35% of daily calories

CLASSWORKCLASSWORK

DO PG. 160DO PG. 160– #1-9#1-9

TOGETHER: #10TOGETHER: #10 TOGETHER #11TOGETHER #11