Transcript You Are What You Eat!! - Portola Middle School

Journal
Write each question. Then answer them as
you view, “Bill Nye Nutrition”.
How does food
give our bodies
energy?
2. How does protein
help build our
bodies?
3. Is fat good for our
bodies?
4. What are calories?
1.
The carbohydrates,
proteins, and fat in food
give our bodies energy.
2. Protein develops red blood
cells, strong muscles, eyes,
bones, etc.
3. Yes! Fat insulates our bodies
for warmth and covers
nerve cells.
4. Calories are the measure of
heat energy when mixed
with oxygen.
1.
You Are What You Eat
Eating Healthy, Eating Well
Food for Life
Food, water, & air are the life’s basic
needs.
Eating is also a social experience.
Many people use food for emotional
relief.
Nutrition
Good nutrition is one of the main
factors in good health.
Nutrition: the foods that the body needs
to grow, develop, and work properly.
Diet: everything that you eat and drink
during the day.
Factors That Influence Your Diet
Geography: what local
products are available?
Family: traditions in families
Cultural background: ethnic Convenience: eating
foods
anything that’s available
Cost: family budget
Advertising: creates demand
for products
Friends: peer pressure
Personal taste: preference
for some foods
The 6 Nutrients
1. Carbohydrates
2. Proteins
3. Lipids (fats)
4. Vitamins
5. Minerals
6. Water
1. Carbohydrates
Carbohydrates: the starches & sugars that
provide our body with most of its energy.
A. Simple carbohydrates: sugars which are found in
fruits, milk, & simple sugar.
1. Carbohydrates
B. Complex carbohydrates: starches
bread, cereal, & vegetables. (good source of fiber)
1 g of carbohydrate = 4 calories.
60% of our daily calories should come from
carbohydrates.
2. Protein
-build, repair, and maintain body cells and
tissues.
-can also be used for energy.
2. Protein
1 g protein = 4 calories.
Amino acids: building blocks of proteins
Animal products & vegetables together can
provide all the necessary proteins.
3. Lipids (Fats)
source of energy and essential for body functions.
Some vitamins can only be absorbed with lipids.
important in production of sex hormones.
fat under the skin keeps us warm.
surround the internal organs for cushion and
protection against injuries.
1 g fat = 9 calories
3. Lipids, part 2
Excess stored as extra weight.
milk, butter, egg, cheese, & meat.
A. Saturated fat = turn to cholesterol in body &
are solid in room temperature
B. Unsaturated fats = liquid at room temp (oils).
only 20% of daily calories should come from fat.
4. Vitamins
needed by the body in small quantities.
regulate many body functions.
carried in body by either water or lipids.
Fat-soluble vitamins are A, D, E, & K.
Vitamin supplements are recommended for people
who do not eat enough fruits and vegetables.
5. Minerals
needed in small quantity.
regulate & maintain many body functions.
found in most food items.
Examples: calcium, iron, fluoride, iodine, …
6. Water (H20)
most common nutrient.
60% of our body weight.
carries other nutrients (vitamins) in the body.
helps digestion and waste elimination.
need 6-8 glasses/day.