fats and carbohydrates. functions of fat in the body fat provides energy, keeps us warm, protects...
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Fats and CarbohydratesFats and Carbohydrates
Functions of fat in the Functions of fat in the bodybodyFat provides energy,
keeps us warm, protects internal organs and contains fat soluble vitamins A and D. The word fat describes fats and olis
At room temperature fats are solid and oils are liquid. They come from plant and animal sources.
Animal fats and vegetable Animal fats and vegetable oilsoilsAnimal fats are
found inCreamDrippingLardButterSuetMeatOily fishEggscheesemeat.
Vegetable fats are found in
SeedsOlivesSoya beansnuts
Types of fatTypes of fat Saturated fats raise the
cholesterol level. This can lead to health problems, so foods containing saturated fats should be eaten sparingly or replaced with healthier options. Foods which contain saturated fats are
Meat pies Sausages Hard cheese Coconut and palm oil Butter Ghee Lard Cream.
Hydrogenated fatHydrogenated fat Hydrogen is bubbled
through some oils to improve flavour and shelf life. This type of fat is known as hydrogenated fat. It is used by manufacturers to make
margarine, spreads, pastry, cakes, biscuits fast foods. Hydrogenated fat is as
harmful as saturated fats.
Unsaturated Unsaturated (polyunsaturated)(polyunsaturated) Unsaturated fats can
help to reduce the level of cholesterol in the blood. Foods containing unsaturated fats included.
Oily fish Avocados Nuts Seeds Sunflower oils and corn
oils Walnut and rape seed
oils and spreads Vegetable oils Soya beans
Functions of Functions of carbohydratescarbohydratesCarbohydrates have
several uses in the body
They provide energy
NSP(non starch polysaccharides) known as fibre which can reduce cholesterol in the blood.
They can help eliminate waste products as NSP cannot be digested.
Types of carbohydrateTypes of carbohydrate Carbohydrates are
sugars and starches. Sugars are sweet and dissolve. Starches are not sweet and do not dissolve. Sugars can be monosaccharides (simple sugars)
Or disaccharides(two sugars joined together)
Starches are known as polysaccharides(many sugars joined together)
NSP is the other type of carbohydrate.
Conversion of Conversion of carbohydratescarbohydrates Sugars provide instant
energy. Starches have to be digested into sugars before the energy can be released. So energy from starches is released more slowly.
Athletes such as marathon runners at starchy food like pasta because the energy from that food will be released slowly during the race.
If you eat more carbohydrate then you need it will be stored as fat.
This can lead to obesity and related health problems.
Sugar causes tooth decay and so it is important to have as little as possible and to brush your teeth.