1. What’s meant by a Healthy person?
Absence of disease?
According to World Health Organization (WHO) :
“Health does not merely mean the absence of diseases. A healthy person should be good in:
mental health
and social well-being.”
physical fitness

2. Physical fitness
Every systems and organs in the body functions normally

3. Mental health
With a clear mind
Able to cope with stress

4. Social well-being
Keep good relationship with peoples.

5. Which of the following diets do you like most?

6. Carbohydrates Fats Proteins Water Vitamins Minerals Dietary Fibres
All the above diets are made up of SEVEN types of food substances.
Carbohydrates
Fats
Proteins
Water
Vitamins
Minerals
Dietary Fibres
They are necessary for the maintenance of LIFE.

7. Carbohydrates (碳水化合物)

8. Carbohydrates (碳水化合物)
Types:
1. Starch (澱粉質)
Find in bread, rice, potato, cereals
Insoluble in water
Not sweet in taste
Can be broken down into sugars

9. Carbohydrates (碳水化合物)
Types:
2. Sugars (糖類)
Find in fruits, sugar cane & milk
Soluble in water
Sweet in taste
Function: Main source of energy in body

10. Carbohydrates (碳水化合物)
Test for Glucose: (Clinistix paper)
Pink
Blue / Purple

11. Fats (脂肪)

12. Fats (脂肪) Food sources: Find in butter, milk cheese and meat Function:
form cell membrane
act as source of energy (food storage)

13. Permanent translucent spot
Fats (脂肪)
Test for Fats: Spot test
Permanent translucent spot

14. Proteins (蛋白質)

15. Proteins (蛋白質) They are built from small unit: amino acids
Food sources:
Find in fish, chicken, meat, cheese and soya beans
Function:
form new cells
for growth and repair of body cells
act as source of energy

16. Proteins (蛋白質)
Test for Proteins: (Albustix paper)
Yellow
Green

17. Water (水) Water is essential to life.
Water makes up about 65% of the body weight in man.
Functions:
take part in all biochemical reactions
acts as a part of blood

18. This child has poor bone growth!
WHY?
His gum is bleeding!

19. They are lacking of ………………………
Vitamins & Minerals

20. Vitamins (維生素) and Minerals (礦物質)
They have NO energy value.
They are essential in very small amounts for maintaining good health.
If there is an insufficient supply of them, we will suffer from deficiency diseases.

21. Vitamin A
Milk
Find in liver, cod liver oil, carrot, fresh green vegetable and milk
Deficiency disease: Night blindness

22. Vitamin C Find in fresh fruits and vegetables
Deficiency disease: Scurvy

23. Vitamin D Find in milk, cod liver oil and egg yolk
Skin can produce it by absorbing UV light
Deficiency disease: Rickets

24. Calcium (鈣) Find in milk, cheese and green vegetables
Deficiency disease: Rickets

25. Iron (鐵) Find in liver, beef and green vegetables
Deficiency disease: Anaemia

26. Dietary fibres (食用纖維) Food sources:
Find in oat bread, cereals, fruits and vegetables
Functions:
gives bulk to the food and stimulates peristalsis of gut
prevent constipation

27. Balanced diet (均衡膳食)
A diet containing the right amounts of all the food substances.
A balanced diet should contain:
carbohydrates and fats to provide energy
proteins for growth and repair
vitamins, minerals, water and dietary fibres to maintain health

28. Balanced diet (均衡膳食)
Different kinds of people will have different balanced diets.
It depends on his/her……occupation!

29. Balanced diet (均衡膳食)
and …
age, sex and physiological state!

30. Balanced diet (均衡膳食)

31. Balanced diet (均衡膳食)

32. Balanced diet (均衡膳食) Obesity (癡肥): energy intake > energy needs
excess energy will be stored in our body as fats
body weight > normal = overweight
serious case of overweight is obesity
Overweight people have higher risk of high blood pressure and heart disease

33. Balanced diet (均衡膳食)
Anorexia (厭食症):

34. Balanced diet (均衡膳食) Anorexia (厭食症): energy intake < energy needs
energy stored in body used up and people suffer malnutrition
anorexia is a mental illness
it often begins with slimming

35. Balanced diet (均衡膳食)
Anorexia (厭食症):

36. Balanced diet (均衡膳食) Food Pyramid (食物金字塔): Eat less Fats, salt & sweet
Eat moderately
Meat, fish & milk
Eat more
Vegetables & fruit
Cereals, bread, rice
Eat most