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Balanced Diet PowerPoint Presentation

worldwideweb By : worldwideweb

On : Jan 08, 2015

In : Health & Wellness

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  • Slide 1 - A Balanced Diet D. Crowley, 2007
  • Slide 2 - A Balanced Diet To know what makes a balanced diet
  • Slide 3 - Energy Where do we get our energy from, and what do we use it for? Our energy is derived from food - whereas plants can produce their own energy from sunlight, we must consume food This food is our raw material - needed to make new substances for: - energy (movement etc…) growth and repair health
  • Slide 4 - Balanced A balanced diet contains the different nutrients in the correct amounts, keeping us healthy. Certain foods are not necessarily 'bad' for us, but eating too much of them could be. Foods contain nutrients: these are substances which provide raw materials for the body (we need nutrients, along with fibre and water for a healthy diet) There are seven different nutrients, and some foods are particular rich in certain nutrients…
  • Slide 5 - Nutrients For a healthy diet we must consume the following nutrients (although the amount we must consume of each varies) Carbohydrates Proteins Fats Minerals Vitamins Fibre Water
  • Slide 6 - Nutrients Nutrients are found within different foods, and they all play important roles within the body
  • Slide 7 - Food In your books draw out two or three examples of different meals you have eaten in the last week, explaining what nutrients are found within E.g. fish and chips would contain: protein, needed for growth and repair (in the fish); and carbohydrates, needed for energy (in the chips (potatoes))
  • Slide 8 - Food Food substances for energy Carbohydrates (e.g. starch and sugar) Fats Food substances for growth & repair Proteins Food substances for health Vitamins Minerals Fibre (made of plant cells) which we cannot eat, but it helps keep our intestines clean Water which is an important solvent in your body, helps cells keep their shape and needed for controlling your bodies temperature (you are ~65% water)!
  • Slide 9 - Balanced Diets Different foods contain different substances - there is no one food that contains all the substances the body needs. Instead you must eat a wide variety of foods - balancing your diet Different people need different amounts of food. You need more food if you are particularly active, are pregnant etc… The amount of energy food contains is measured in kilojules (kJ) - if you are more active, your kJ intake needs to be greater Nutritional labels tell us what the quantities of nutrients contained within the food
  • Slide 10 - Balancing If we eat too little food, we will use up our store of fat and become too thin. If we eat too much food, especially foods rich in sugar and fat, we will increase our store of fat and become too fat. It is important to balance the amount of food we eat with who we are and what we do. The amount of energy we need from our food depends on our age, our height and how much exercise we get. E.g. a one-year old baby needs 3850 kJ each day to continue to grow, whereas an adult Olympic swimmer in training needs 15,600 kJ each day.
  • Slide 11 - Poor Diet If you have too little of a particular nutrient, we say that you have a deficiency in that nutrient, e.g. fibre deficiency can lead to constipation Mineral deficiencies - e.g. iron deficiency can lead to anaemia (too few red blood cells); iodine deficiency can lead to a swelling in the neck called a goitre Vitamin deficiencies - e.g. vitamin A deficiency can cause blindness; vitamin C deficiency can cause scurvy (makes the gums bleed); and vitamin D deficiency can cause rickets (legs bow outwards in growing children)
  • Slide 12 - Questions In your own words, answer the following: - Name two sources of protein Why do you need protein in the diet Starch and sugar are examples of what food group Do you think you eat a balanced diet - explain your reasoning and suggest ways to improve your diet Answers: Meat; fish; eggs; cheese; beans; milk Protein makes new cells, helps us grow and repairs our bodies Starch and sugar are carbohydrates
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