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Proteins and Fats
Transcript of Proteins and Fats
What are some of your favorite sources of protein?
Why are they especially important
during your teenage years?
Proteins help your body grow and repair itself
Found mostly in animal products
like meat, poultry,eggs,fish
But also in plants
like beans, nuts, and grains
Structure of proteins
found in every cell of your body
1/5 body weight
made of amino acids
molecule that combines with others to make proteins
different proteins perform different tasks
some form rope like spirals
tendons and ligaments
some make ball shape proteins
such as hemoglobin
Body makes most , but not all of the amino acids you need
essential amino acids- amino acids that you must get from food
complete proteins come from animal sources
and soy products
incomplete proteins come from plant sources
can combine them together to
make complete proteins
Why do we need proteins?
how much to we need?
growth and maintenance
cells need replacing
make reactions possible
proteins that fight disease
help maintain right balance of fluid
teens should get 10-30% protein
calculate how many grams of protein and fat you need every day.Hint you need your BMR. Directions are on page 89 and 94
too much can be harmful
to your health
hard on digestive system
excess is stored as fat
Protein food choices
should try to get more protein
from plant sources
red beans and rice
peanut butter sandwich
hummus and pita bread
The Lipids Family
chemical compounds found in every cell, both in foods and in the body
basic fat molecule
-found in cell membranes
example is cholesterol
can be solid or liquid
wont dissolve in water
high fat foods are usually high in calories
can you name some high fat foods
some fats are easy to spot
meat fat, oils
invisible fats l
ike egg yolks
nuts, whole milk,
why do we need fat?
helps with absorption of vit A,D,E,K
protects vital organs
help you feel full longer
enhances flavor and texture of food
Structure of fat
saturated and unsaturated
saturated- solid at room temperature
liquid at room temperature
essential fatty acids-
must get from food
may lower risk of heart disease
found in fish, walnuts,
fatylike substance in cells
helps digest fat, build cells, make vit D and some hormones
booty makes all cholesterol it needs, but also found in animal products
diet affect cholesterol
how many fat calories do you need
Cholesterol circulates through the body as part of 2 lipoproteins called LDL and HDL
low density-takes cholesterol from liver to where it needs to go. Can build up in arteries. Bad cholesterol
high density-takes cholesterol back to liver, Good cholesterol.
Can also lower bad cholesterol
HDL # high
Remember your body makes all the cholesterol it needs
come mainly from
solid at room temp
Why should you limit your intake of fats and proteins
may help lower cholesterol
vegetable oil, corn oil, sunflower oil, seafood
lower LDL and raise HDL
olives, avocados,nuts,peanut oil
25-35% of calories should come from fat
eat plenty of fruits, vegetables and grains
choose fat free or low fat milk, cheese, and yogurt
remove the skin from chicken
choose lean cuts of meat
watch portion sizes
limit fried foods
spot light on careers
Become a Food Writer
Do you love food? Do you have a passion for fresh ingredients?
If so, have you considered becoming a food writer? Food writers can perform
a variety of jobs. In my own experience, food writing has brought me great joy.
Some of the most popular food writing jobs include:
Recipe Writing - many online forums hire food writers to write weekly, monthly,
or daily recipes. I am a food blogger here at Families.com, and sharing recipes with
readers is something I look forward to each day.
Cookbook Writing - cookbooks are published every year. Fresh ideas are always needed.
If you have a new idea, why not give it a try?
Restaurant Reviews - this is a fun career. Many times the reviews are done anonymously
Companies will often reimburse you for your meal and pay you a flat fee for the article/review you provide.
Some of these jobs can pay very well, while others are mostly for exposure.
If you love dining out then this may be a career to consider.
Recipe Testing - there are companies who will pay you to test recipes for them.
For example, I once created 15 recipes for a company using their pre-packaged muffin mix.
I sent the samples back to them in their pre-paid box and they posted the recipes on their website.
This is a fun job for a home cook who loves to experiment with new recipes.
If you've ever considered food writing, find your own niche and go for it!
You never know what career opportunities are out there until you try.
Personally, the joy I get from sharing recipes and writing about food,
brings me a great deal of satisfaction. The highlight of my day is when someone
contacts me to tell me they tried one of my recipes and loved it.
when is vegetable oil not an oil?
when it has been hydrogenated
chemical process that turns
vegetable oil into a solid
margarine and shortening are trans fats
also found in crackers,snack foods, baked foods
very bad for you
Protein puzzle game
What sources of protein
might a vegetarian eat?