What Is Nutrition?
The science or study of food and the
ways in which the body uses food.
Nutrients are the substances in food
that provide energy or help form body
tissues and are necessary for life and
Along with exercise, a proper diet is
essential for weight control and physical
How you eat has a huge impact on your
physique and how your body
•A Balanced Diet To be healthy, you need the
right amount of nutrients from each meal.
Carbohydrates are energy-giving
nutrients that include sugars,
starches, and fiber.
Sugars are the simplest form of
Starches are more complex
carbohydrates that can be broken
down into sugars.
1 gram of carbohydrate equals 4
Glycogen is a form of carbohydrate your
body uses for short-term energy storage.
Fiber is a complex carbohydrate that
provides little energy and cannot be digested.
However, fiber is important to keep your
digestive system healthy.
Single and double sugars
Broken down easily for rapid energy
End in ose
Glucose is a single sugar
Fructose, lactose and sucrose are
double sugars and are linked with
Glycogen: quick energy stores
If you eat more than your body needs it
is stored as fat
Made of many sugars connected together
Must be broken down to be used by the body
Starches and Fiber
Starches: plant foods (potatoes, beans,
peas, and grains such as rice corn and
Fiber: provides little energy and is
Keeps your digestive tract healthy.
Soluble fiber: dissolves in water. Helps trap
Insoluble fiber: add bulk to waste.
Fats are the body’s main form of long-term
Fats are large molecules made up of fatty
acids and glycerol.
Fatty acids are long chains of carbon atoms
attached to hydrogen atoms.
Fats are classified by the types of fatty acids
Saturated fats contain saturated fatty
Saturated fats are usually solid at room
temperature. They come from foods
such as meat and milk.
Eating too many saturated fats can lead
to obesity, high cholesterol levels, and
increased risk of heart disease.
Unsaturated fats contain unsaturated
Saturated fats are usually liquid at room
temperature. They come from foods
such as oils and fish.
An unhealthy substance made through
the chemical process of hydrogenation
of oils. Hydrogenation solidifies liquid
oils and increases the shelf life and the
flavor stability of oils and foods that
Uses For Fat
Padding for organs
Carry fat soluble vitamins
Found in all animal tissues.
You make it and you eat it.
Cholesterol is necessary for certain essential
functions in the body.
Low-density lipoprotein: brings cholesterol to
the body cells.
When your LDL is too high plaque is
deposited on the walls of blood vessels.
LDL= bad cholesterol.
High-density lipoprotein: carries
cholesterol back to the liver for
You need fat in your diet
Too much is bad!!!!
Limit saturated fats, cholesterol, and
Focus on unsaturated fats
25-35% of your diet should come from
1 gram of fat = 9 calories
Proteins are made of amino acids, which are
used in building and repairing structures in
Proteins are also needed for hormones,
enzymes, and other essential molecules.
Essential amino acids are nine amino
acids that the body cannot produce on
Complete proteins are dietary proteins
that contain all the essential amino
Incomplete proteins do not contain all
the essential amino acids.
Uses for Proteins
Body building nutrient
Build & repair tissue
Hormones, enzymes, antibodies
Americans get too much protein
Excess stores as fat
1 gram of protein = 4 calories
Metabolism is the sum of the chemical
processes that take place in your body
to keep you alive and active.
Metabolism requires energy from
carbohydrates, fats, and proteins.
The energy in food is measured in
What Is a Calorie?
A calorie is the amount of heat
needed to raise the temperature of
a liter of water 1 degree.
Relax. It is just a scientific way to
What Do You Need to Know
Think about what you regularly eat,
What your calorie needs are,
And how to count calories.
It takes approximately 3,500 calories below
your calorie needs to lose a pound of body
It takes approximately 3,500 calories above
your calorie needs to gain a pound.
Calories Count—and They Come
From Both Food and Beverages.
When eating packaged foods (for
example, frozen, canned, and some
prepared foods from the grocery store),
counting your calories is easy—it's on
the nutrition facts label.
When eating foods that do not have a
nutrition facts label, you should pay
attention to portion size.
We need food for energy
As we eat, our body uses that
energy for all processes and
energy for exercise
Some nutrients that we do not
use is stored temporarily as
If we do not exercise our bodies
will convert the energy into
All Nutrition in one glass.
shake is proper
This is healthy
Enjoy our shake
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