Transcript nutrients powerpoint

Teen Living Objective 7.02 Assess Personal Eating
Habits
Nutrients
Nutrients are chemicals in food
 They help the body work properly

Classes of Nutrients
Carbohydrates
 Proteins
 Fats
 Water
 Vitamins
 minerals

Carbohydrates

Carbohydrates provide the body with
ready energy
Grains, Vegetables, & Fruits

All of these provide complex
carbohydrates as well as other nutrients
Categories of Carbohydrates
Sugars
 Starches

Refined Sugar

Refined sugar can cause weight gain
and dental problems
Benefits of Fiber

Fiber helps move food through the
digestive system
Protein

People need protein because it repairs
and builds tissues in the body
Amino Acids

Amino acids are chemicals in protein
Complete vs. Incomplete Proteins
Meat, fish, & poultry contain all 9
essential amino acids are said to have
complete protein
 Other foods, such as dried beans &
nuts, do not contain all 9 essential
amino acids and are incomplete

Ways the Body Uses Fat
To transport and store nutrients
 To regulate body temperature and
growth
 As a reserve supply of energy

Saturated vs. Unsaturated Fat
Saturated fat – found in animal foods
and coconut & palm oils
 Unsaturated fat – found in oils from
vegetables, nuts, seeds and is a liquid at
room temperature

Problems from Excess Fat
Weight gain
 Heart disease
 Other health problems

Function of Cholesterol

Cholesterol transports and digests fat
High Cholesterol

A high cholesterol level can lead to heart
disease and high blood pressure
Functions of Water
The basic material of blood
 Transports nutrients
 Carries away waste products
 Moves food through the digestive
system
 Regulates body temperature

Water Every Day

A person should drink 8 glasses of water
EVERY day
Vitamins
They help the body stay healthy and
function properly
 They process other nutrients

Water-Soluble Vitamins
Vitamin C & the B vitamins
 (they are not stored in the body and
must be consumed every day)

Fat Soluble Vitamins
Vitamins A,D,E, & K
 ( these are the vitamins stored in the
body’s fat)

Minerals
Minerals form part of many tissues
 They keep body processes operating
smoothly

Lack of Calcium

Results can be:
 weak bones
 Weak teeth
 osteoporosis
Iron
Iron should be in the food that you eat,
as it builds red blood cells
 Anemia results from a lack of iron

Minerals the Body Needs
(besides calcium, phosphorus, & iron)
 Potassium
 Magnesium
 Zinc
 Iodine
 Sodium

Calories
Calories are units of heat
 4 calories are in a gram of protein
 (4 calories are in a gram of
carbohydrates)
 9 calories are in a gram of
fat
