The food that we eat provides us with the energy we need to get us through the day. Our bodies also use that energy to perform necessary functions.

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2 The food that we eat provides us with the energy we need to get us through the day. Our bodies also use that energy to perform necessary functions. Breathe Maintain body temperature Heart rate Digestion Ect.

3 The energy that we consume is measured in two units. Calorie (Cal) Kilojoule (kj) 1 calorie = 4.18 kj So, to convert from calories to kilojoules, you have to multiply by 4.18 and to convert from kilojoules to calories you have to divide by 4.18.

4 On a daily basis, we take in 6 different types of nutrients Carbohydrates (carbs) Fats Protein Water Vitamins Minerals Only 3 of these provide us with energy, which ones?

5 Composed of long chains of animo acids. Mainly used to build and repair cells and tissues Provide energy Are mainly found in dairy products, meat, fish, eggs, nuts, legumes and tofu

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8 Can be either a single, double or long chain of sugar molecules Main energy source for the body Simple sugars are found in fruits, milk, juices, desserts, granulated sugar Complex carbohydrates are found in breads, cereals, potatoes, rice, legumes

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13 Also called lipids, composed of fatty acids and a glycerol Storage in the body and energy source Building blocks for hormones and cell membranes Protect the body and insulation Mainly found in dairy products, oils, butter, fatty meats, delicious fried foods There are three types Saturated, unsaturated and trans

14 Unsaturated are the best of the 3 types of fats Saturated are the middle in worseness Trans fats are the worst kind of fats. These are man made fats and not normally found in nature Your body doesn t know how to handle the foreign fat which can lead to some health issues

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18 Water is a molecule composed of one Oxygen and two Hydrogen molecules Makes up about 70% of our bodies, by weight Transports nutrients and waste Regulates body temperature Essential to many chemical reactions in the body. Found in water, fruits, veggies, milk

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20 Substances that the human body requires in small amounts Each vitamin has a different function in the human body Helping chemical reactions Energy production Mineral absorption Fight infections Repairing damaged tissues Found in fruits, vegetables, grains, dairy, eggs, liver

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22 Vitamin A Vitamin B1 Vitamin B2 Vitamin B6 Vitamin B9 Vitamin B12 Vitamin C Vitamin D Vitamin E Vitamin Eyesight Use in body Various body tissues Hair, skin, nails, breakdown of Protein, Fat, Carbohydrates Prevent skin and nerve problems. Helps absorb proteins and carbs Making red blood cells and essential to prevent some birth defects Making red blood cells and nerves Immune defense and healing Stronger bones and teeth Antioxidant (fights toxins)

23 Substances of mineral origin that make up about 4% of the body, by weight. Must be consumed daily. Different minerals play different roles in the body. Building teeth and bones Maintain fluid balance Muscles contraction and nerve impulse Transport oxygen in blood Found in dairy, legumes, seafood and fish, fruits, vegetables

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25 Mineral Calcium Iron Magnesium Phosphorus Potassium Sodium Zinc Use in body Building strong bones and teeth Helps carry oxygen in blood with the red blood cells Helps muscle and nerve function. Keeps bones strong. Steadies heart rate. Helps form strong bones and teeth. Helps body make energy. Helps with nerve and muscle system function. Helps with nerve and muscle system function Normal growth, immune system and wound healing

26 Nutrient kj/g Cal/g Carbohydrates 17 4 Fats 37 9 Proteins 17 4 Water 0 0 Vitamins 0 0 Minerals 0 0

27 In Canada s Food Guide, foods are broken down into four different food groups. To meet our daily nutritional requirements, we are recommended to eat a certain amount from each of these food groups. The amount to be eaten depends on your age, sex and physical activity level.

28 Food Groups Number of servings Females Males Fruits and vegetables 7 8 Grain products 6 7 Milk and alternatives Meat and alternatives 2 3 Serving Size 1 orange 250 ml lettuce 125 ml juice 125 ml brocolli 1 slice of bread 125 ml rice 30g cold cereal 250 ml milk 175 ml yogurt 50g cheese 75g fish, lean meat or cooked poultry 175 ml cooked legumes 2 eggs 60ml shelled nuts

29 Age Sedentary Low active level Active level 2-3 y y y y y y y y y y y y

30 As you can see, depending on your age and activity level, the amount of calories required to eat changes. Also, males require more calories than females to due to typically being larger and having more muscle mass. Some high caliber athletes can sometimes consume close to 8,000 Cal a day. Michael Phelps was known to consumer around 12,000 Cal a day.

31 Here s a quick video showing how many of certain things to need to eat to reach 2,000 Cal Next class, try to bring it food items with the nutritional label, or just the label, so we can compare foods.