Source of energy Two types –Simple (sugars) –Complex (starches) Found in milk & sugar Releases...
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Transcript of Source of energy Two types –Simple (sugars) –Complex (starches) Found in milk & sugar Releases...
• Source of energy• Two types
– Simple (sugars)– Complex (starches)
• Found in milk & sugar• Releases insulin• Daily intake 180-300 g.
Carbohydrates
• Breaks down into sugar• Causes blood sugar to rise• 3-5 servings a day• What most foods are made of• Too much=extra body fat
Carbohydrates
• Component in food• Fuel source• Storage in body • Can be unhealthy • Come in different forms
– Unsaturated (good)– saturated (too much=bad)– Trans (too much=bad)
Fats
• Builds, maintains, replaces tissues in body
• Makes up body• Increases strength• Helps muscles grow• Best sources
– Beef– Poultry– fish
Protein
• Vegetable sources are best• Muscles & immune system made up
of• Makes protein molecules• Breaks down proteins into amino
acids• Builds muscles• Stimulates growth• Needs 40-50 g. each day
Protein
• Need it to survive• Half of body weight• Need it to digest food• Cells depend on• In fruit & vegetables• Need to drink
Water
• Good for bowels• Can lower blood cholesterol• Prevents diabetes• No calories• In fruits & whole-grains• Found in plants
Fibre
Dietary Minerals
• naturally occurring chemical• two types: trace & macro• minerals help body grow, repair &
develop• main sources: calcium, iron &
potassium
Trace and Macro Minerals
• only few trace needed• large portions of macro needed• macro: calcium & potassium• trace: iodine & iron• trace can be very bad if too much
Vitamins
• two types: fat soluble & water soluble
• water soluble travel through blood-stream
• fat soluble stored in body• helps immune system• body needs them to grow
Vitamin A
• helps eyesight & seeing in the dark
• keeps skin healthy• helps maintain proper growth • found in milk, liver, orange fruit
and veggies & dark green veggies
Vitamin B
• more than one: B1, B2, B6 & B12• makes energy & blood cells• is stored in body until needed• found in grains, seafood,
potatoes, dairy & fruit
Vitamin C
• heals cuts and wounds• helps body resist infection• keeps muscles and gums in good
shape• found in oranges, strawberries &
other fruit
Vitamin D
• needed to form & develop bones when young
• needed for strong bones & teeth• helps body absorb calcium• found in milk, fish, egg yolk, liver
& cereal
Vitamin E
• protects lungs from polluted air• maintains body tissues• helps form blood cells • found in grains, wheat germ,
green veggies, sardines, egg yolks, nuts & seeds
Bibliography
• http://www.thefoodchart.com/dietary-minerals.php
• http://kidshealth.org/kid/nutrition/food/minerals.html
• http://kidshealth.org/kid/nutrition/food/vitamin.html
• www.helpwithcooking.com/nutritioninformation/vitamin-guide.html
• www.kidshealth.com• www.hsph.harvard.edu• http://www.kidzworld.com/article/7582-nutrition-protein• www.nutrition.about.com