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KEEPING FIT. 5 TH GRADE SCIENCE Ms Javeria Ali 4 th April-8 th April 2011. BALANCED DIET. A balanced diet must contain carbohydrate, protein, fat, vitamins, mineral salts and fibre. It must contain these things in the correct proportions. FOOD GROUPS.
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KEEPING FIT 5TH GRADE SCIENCE Ms Javeria Ali 4th April-8th April 2011
BALANCED DIET • A balanced diet must contain carbohydrate, protein, fat, vitamins, mineral salts and fibre. It must contain these things in the correct proportions
FOOD GROUPS • Carbohydrates: these provide a source of energy. • Proteins: these provide a source of materials for growth and repair. • Fats: these provide a source of energy and contain fat soluble vitamins. • Vitamins: these are required in very small quantities to keep you healthy. • Mineral Salts: these are required for healthy teeth, bones, muscles etc.. • Fibre: this is required to help your intestines function correctly; it is not digested
CARBOHYDRATES • PotatoesPastaCereal RiceBreadNoodles • Breakfast • How do carbohydrates help the body?Carbohydrates help fuel the body by providing energy. When we exert the body with activities such as riding a bike, running or playing sport the body uses up large amounts of energy. We have to make sure we balance the energy that goes out, with food and water that comes into the body. We can replace lost energy by eating foods rich in carbohydrates and drinking plenty of water. • You can increase your carbohydrates by: • always having a breakfast • having thick sliced toast like whole grain bread • eating brown rice or pasta • having boiled potatoes rather than chips which are cooked in fats
FATS • Fats: CheeseMargarineWhole MilkButterCakeSweetsChocolateBiscuitsIce-CreamCrispsFizzy DrinksFast Foods - Chips, Fried Rice, Sausage Rolls • Do fats help the body?Fats give the body energy for growth, but we need to make sure we eat the right amount as too much fat can be bad for us. .
VITAMINS AND MINERALS • FRUIT AND VEGETABLESPeasCarrotsOnionsCabbageApplesBananasGrapesPearsPeachesStrawberriesOrangesHow do vitamins and minerals help the body?Fruit and vegetables are packed full of vitamins, minerals and fibre that help protect the body from illness. • You can increase your vitamins and minerals by: • drinking a class of pure fruit juice with breakfast • eating fruit rather than sweets as a snack • having a fruit salad for dessert • eating two servings of vegetables or salad for your evening meal
MINERALS • These are also needed in small quantities, but we need more of these than we need of vitamins. • Iron: required to make haemoglobin. • Calcium: required for healthy teeth, bones and muscles. • Sodium: all cells need this, especially nerve cells. • Iodine: used to make a hormone called thyroxin.
FIBRE • We can not digest cellulose. This is a carbohydrate used by plants to make their cell walls. It is also called roughage. If you do not eat foods materials which contain fibre you might end up with problems of the colon and rectum.
PROTEIN • ChickenLentilsBeansMeatSoya FishEggs • How does this nutrient help the body?Protein is good for the body as it helps to build and repair cells and muscles. • You can increase your protein by: • choosing lean meat or chicken • eating at least two servings of fish a week • having beans or lentils with meat or as a meat free meal
