Transcript Document

Lesson 3:
Processed Kids
Food
Processing
What Does It Mean To
Process Foods?
To transform raw food into a
new food through the use of
technology, chemicals,
physical or other refining
methods
REASONS FOODS ARE
PROCESSED
• Can be distributed worldwide
• Produced at a lower cost
• Keep food from spoiling
• Preserve seasonal foods
• To remove toxins
What Does Processing Do
To Food?
• Leaches out valuable vitamins and
minerals
• Destroys Fiber
• Causes allergies, asthma and
cancer
• Adds calories
• Increases sugar and fat
consumption
Affects Your Brain
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Processing Techniques
Bleaching
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Benzyl Peroxide to whiten flour
Chlorine Dioxide rapidly changes the color
Destroys Vitamin E
Skin and eye irritant
Linked to allergic reactions
Cancer-causing agent
Poisonous in large amounts
FOOD FACT: BLEACH
Unprocessed flour is naturally
brown in color. Flour is changed
to a white color by bleaching it.
Used to take several months to
change the color of flour, now it
only a few minutes with bleaching
additives.
Processing Techniques
Hydrogenation
• Chemicals change a liquid oil into a
solid
• Known as hydrogenation, partially
hydrogenated oils or trans-fats
• Raises cholesterol levels more than any
other fat
• Can lead to heart disease
FOOD FACT:
HYDROGENATION
Most people are wise to the dangers
of trans-fats, so food companies
have been replacing them with palm
oils. Palm oils are extremely high in
solid or saturated fats. This
process is destroying the rain
forest.
Difference Between Whole
and Refined Foods
• Whole foods are foods in their
entirety or closest to their natural
state
• Refined foods are highly
processed and stripped of their
nutritional value
Why are Grains Refined?
• To extend shelf life.
• Refining grains led to deficiencies
in vitamins and minerals.
o Pellagra – niacin deficiency
o Beriberi – thiamin deficiency
• Food companies required to add
nutrients back in – process called
“enrichment”
Refining a Grain Activity
Refining Sugar Process
Uses Bone Char
A granular matter produced
by “charring” or heating
bones to high temperatures.
Used to remove colors in
sugar.
Sugar and Diabetes
Insulin
A hormone secreted by the
pancreas that removes excess
sugar or glucose from the blood
and moves it to the cells of the
liver or muscles for storage and
later use.
Alternative to Processed
or Refined Foods?
•Fresh Fruits
•Vegetables
•Whole Grains
Whole Grain?
Check the Label
• 100% Whole Wheat is Whole
Grain.
• Whole grain is 1st ingredient.
• Fiber
o 3 grams or more = good
source
o 5 grams or more = excellent