balanced Diet

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Presentation Transcript

DIET : 

DIET

Slide 2: 

WHAT IS DIET? Diet can be defined as the NORMAL FOOD WE EAT. BUT there are also SPECIAL DIETS ! FOR EXAMPLE To lose weight or gain weight diets. Diets because of moral values e.g.. Vegetarian Diets because of food allergies e.g. Wheat flour intolerance.

LOSING WEIGHT : 

LOSING WEIGHT People who want to lose weight usually do so by using one of three possible methods Decreasing kilocalorie energy intake. Increasing kilocalorie energy expenditure. Using a combination of both.

SO WHAT ARE KILOCALORIES ? : 

SO WHAT ARE KILOCALORIES ? Energy can be measured using JOULES or CALORIES. When large units are involved, such as they are in diets, the term KILOCALORIE is used. 1 kilocalorie =1000 calories.

WHAT IS ENERGY BALANCE ? : 

WHAT IS ENERGY BALANCE ? Energy balance means taking in (Eating) and using up (Through work, exercise etc) an equal number of calories or Kilocalories. We all have our own metabolism or rate of using up energy- this is known as our METABOLIC RATE.

Slide 6: 

This is why some people may eat less food but actually put on weight, whilst others appear to be able to eat anything without putting on a pound. Males between 15 and 18 need about 2750 calories a day. Females between 15 and 18 need about 2100 calories a day.

Slide 7: 

WHEN EXERCISING OR DOING ANY PHYSICAL ACTIVITY YOU BURN UP CALORIES. FOR EXAMPLE:-

Slide 8: 

PER HOUR

WHAT IS OVERWEIGHT ? : 

WHAT IS OVERWEIGHT ? Having weight in excess of normal. Not harmful unless it is accompanied by over fatness.

Slide 10: 

FOR EXAMPLE Men having more than 19% of total body composition as FAT. Women having more than 26% of total body composition as FAT.

WHAT ARE THE 7 FACTORS OF A BALANCED DIET ? : 

WHAT ARE THE 7 FACTORS OF A BALANCED DIET ?

CARBOHYDRATES : 

CARBOHYDRATES

Slide 16: 

Carbohydrates are important because they maintain our body’s energy stores. There are 2 types of carbohydrate. Sugars Starch Carbohydrates are stored in the muscle and the liver as GLYCOGEN. This can quickly be converted into glucose and used as ENERGY in the Muscles. It is the Starches which provide the Energy we need when we take part in sport.

FATS : 

FATS

Slide 20: 

Fat is important because it also provides Energy and helps to make other things work. There are 3 types of Fat. Saturated fats Polyunsaturated fats Monounsaturated fats

PROTEIN : 

PROTEIN

Slide 24: 

Protein also provides Energy but its main function is as a body builder and repairer when recovering from injury. Protein comes from 2 types of food. Animal protein as found in meat, poultry and fish and dairy products Plant or vegetable protein as found in beans, nuts, bread, potatoes, cereals, pasta and rice which are also a source of carbohydrate.

VITAMINS : 

VITAMINS

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Vitamins are only required in small quantities and are needed for: Good vision Good skin Red blood cell formation Healing Healthy bones and teeth Blood clotting

MINERALS : 

MINERALS

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Minerals are inorganic substances that our bodies need for a variety of functions. Examples are: Calcium- vital to health especially during growth in childhood. Iron- linked with the blood. A lack of iron can lead to ANAEMIA which makes people very tired and irritable.

WATER : 

WATER

Slide 33: 

Water is a means of transport for nutrients, waste and hormones. It also controls the distribution of body salts. Taking in water is vital for everyone as it makes up about half of the body’s weight. It is needed to control body temperature especially when we are exercising.

FIBRE : 

FIBRE

Slide 37: 

Fibre adds bulk to food and is important in the functioning of the digestive system.

Slide 38: 

SO THE SEVEN FACTORS OF A BALANCED DIET ARE:-

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