Download Why should we worry about our nutrition?

Introduction to Nutrition
Guided Notes
9th grade Health
Why should we worry about our nutrition?
In your own life?
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essential during adolescence because of _____heightened nutritional needs__
growing _____mentally__ and __physically______
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promotes good ____food habits____to last a lifetime
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directly correlated with __school ___ and _athletic performance
In our country?
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America is one of the most ___unhealthiest___countries in the world
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___Diet-related____disease is the biggest killer in the United States
Healthy Eating can also result in..
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Preventing chronic diseases (heart disease, diabetes, obesity)
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Type 2 diabetes becoming more common in teenagers
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More ___energy___ for class, sports and other activities
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Keeping your____immune system___strong
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Helping with ______concentration_____
Food = Fuel for the body!
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Food provides the___fuel_that runs your body.
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The sum of chemical processes that take place in your body to keep you alive and
active is called __metabolism_
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The nutrients in food that provide energy are _____carbohydrates, fats, and
proteins__.
Calories – measure of energy in food
Macro-Nutrients
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Carbohydrates_– gives our bodies energy
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Protein__–builds muscle
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Fats__– keeps you warm, helps your brain perform properly
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Water__– keeps you hydrated, move nutrients through body and regulates body
temperature
Carbohydrates
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Can be broken down into starches, sugars and fibers.
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Sugar is considered a simple carb – breaks down_quickly, giving you
___quickly_energy (sugar rush…crash)
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Starches are considered a complex carb – breaks down__slower_, giving body
_longer__ lasting energy
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Fiber is ___non-digestable___, enables food to move through the __intestines_
smoothly and efficiently
Fats or Lipids
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Many different jobs in human body
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Keep us warm – provide __insolation__ to vital organs
Stores__vitamins__
Makes up the walls of every cell
Types of Fats in Foods
Saturated Fat – ____animal____source (meat, dairy), raises cholesterol levels
Unsaturated Fat - __plant___ source (olive oil, peanut oil), lowers cholesterol
Trans Fat – man made, chemically processed, makes fats harder and more dense
(hydrogenation)
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Why would it be unhealthy for you to eat no fat at all?
Your body needs some fat in the diet to cushion body organs, keep body temp. stable, make
cell membranes etc.
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What is one characteristic of trans fat?
man made, chemically processed, makes fats harder and more dense (increase shelf life)
Proteins
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Building blocks _muscle _tissues in vital organs such as the heart, intestinal walls,
lungs.
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These tissues need to be constantly replenished with acids which protein provides
Protein Ponderings…
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Eating extra protein is important if you want to build bigger muscles…
True or False
muscles grow in response to strength training not to an increase in protein intake
Water
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ESSENTIAL to every body function
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Blood is______50___water
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Brain is ______70_____water
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Every muscle contains water
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Keeps us _Hydrated_
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Helps____transports___nutrients to and ____carries____waste from your cells
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Enable you to ____swallow____ and ___digest____ food
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Perspiration – through sweating, water helps maintain body temperature.
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HEALTHY TIP – try to drink half your weight in ounces of water every day!
Ex: 130 lb teen needs to drink about 65 ounces of water a day
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How much water do you need a day?
Calculate it yourself
Micro-nutrients
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Vitamins and Minerals – helps you ____grow_, keeps you from getting ___sick.
Vitamins
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No calories!
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Work with other nutrients to improve health
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keep our immune system healthy, keep our __bones_ strong, help with _eye ______
sight, raise ____energy____levels
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Fruits
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Vegetables
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Grains
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Beans
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Dairy
Minerals
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No calories!
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Work with other nutrients to keep us healthy
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Help our heart beat, keep bones strong, carry _oxygen_ in our blood stream
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Calcium, iron, potassium, sodium etc.
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Vegetables
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Animal products
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Grains