diseases caused by deficiency of VITAMINS & MINERALS (Science)

1. SCIENCE
7
th

-BY PANKTI DAVE

2. This lesson covers various This lesson covers various
diseases caused by deficiency diseases caused by deficiency
of VITAMINS & MINERALS in of VITAMINS & MINERALS in
our diet.our diet.

3. A balanced diet and clean surroundings
are necessary for good health.
• A balanced includes all food constituents.
•Body needs VITAMINS & MINERALS in very
small amounts.
•Deficiency of these can cause DISEASE.

4. VITAMINS
Vitamins has a specific & vital function in body.
Its essential for growth & development of body.

5. Disease caused by deficiency of
vitamin C (ASCORBIC ACID)
Vitamins are required for joints, bones, teeth, gums etc.
Deficiency of vitamin C causes
 SCURVY ( in adults)
 WEAKENS LIMBS ( in children)

6. Sources of vitamin CSources of vitamin C
LemonsLemons
AmlaAmla
OrangesOranges
SweetlimeSweetlime
Leafy vegetablesLeafy vegetables
Fresh fruitsFresh fruits

7. DISEASE CAUSED BY
DEFICIENCY OF VITAMIN
D
Vitamin D is essential for
Development of bones
Absorption of calcium & phosphorous in body

Deficiency of vitamin D causes
 RICKETS ( Young children). Bones become soft &
get bent.

8. SOURCES OF VITAMIN D
 Sunlight
 Cod liver oil
 Shark liver oil
 Egg
 Butter
 Cow’s milk

9. CALCIUM
Calcium essential for
FORMATION OF BONES
Deficiency of calcium causes
Teeth to wear away
Makes BONE BRITTLE

10. Sources of calciumSources of calcium
• Milk & milk productsMilk & milk products
• WheatWheat
• Leafy vegetablesLeafy vegetables
• CabbageCabbage
• CarrotsCarrots
• OrangesOranges
• AlmondsAlmonds

11. PHOSPHOROUS
Phosphorous essential for
GROWTH & DEVELOPMENT of body
Deficiency of phosphorous causes
Loss of weight
Stunted growth

12. SOURCES OF PHOSPHOROUS
• Cereals
-Wheat
-Bajra
-Corn
• Pulses
-Udid dal
-Moong dal
• Egg yolk
• Milk
• Leafy vegetables

13. IRON
1.Iron is important CONSTITUENT OF BLOOD
2.Gives blood RED COLOUR
3.Supplies OXYGEN to body
4.Essential for producing RBC’S in body
Deficiency of iron causes
ANAEMIA
AN ANAeMIc perSoN geTS TIred
eASIly.
pregNANT woMeN Need More IroN.

14. SOURCES OF IRONSOURCES OF IRON
WheatWheat
JaggeryJaggery
Leafy vegetablesLeafy vegetables
DatesDates

15. IODINEIODINE
Iodine is important for body Iodine is important for body
An important constituent of hormoneAn important constituent of hormone
→ThyroxineThyroxine
Thyroxine is secreted by thyroid gland in neckThyroxine is secreted by thyroid gland in neck
Deficiency of iodine causesDeficiency of iodine causes
GOITREGOITRE
Goitre leads to irregular growth of thyroid glandGoitre leads to irregular growth of thyroid gland

16. SOURCES OF IODINE
• Use of iodised salt in food preparation

17. ILL EFFECTS OF
INTOXICATING SUBSTANCES
• Intoxicating substances are very harmful
to human body
• They can be at times fatal to health

18. INTOXIC SUBSTANCES INCLUDES
• Chewing tobaco
• Smoking cigarettes or bidis
• Drinking alcohol
• Taking drugs

19. Chewing tobaco or gutkha can cause
→ CANCER OF MOUTH
People who chew paan or tobaco, spit in public places.
The germs in the spit spread diseases.
Smoking cause deposition of TAR in lungs causing
CANCER
Remember “SMOKING IS INJURIOUS TO HEALTH”

20. Drinking alcohol and taking drugs has
harmful effects on NERVOUS SYSTEM
The person may loose his mental balance
Overuse of such substances can be fatal

21. SUMMARY
Balanced diet and clean environment are
necessary for maintaining good health
Deficiency of vitamins and minerals cause
many disease
Growing children have greater need of
calcium
Intoxicating substances have adverse
effects on nervous system

22. EVALUATION
Q. Which is the main source of vitamin D?
Ans: Sunlight is the main source of vitamin D.
Q. What are the ill effects of drinking alcohol?
Ans: Drinking alcohol has harmful effects on
nervous system.
Q. Which disorder is related to lack of iodine?
Ans: Goitre is related to lack of iodine.
Q. Name the sources of vitamin C?
Ans: Lemon, Amla,Oranges,Sweetlime,Leafy
vegetables,Fresh fruits are sources of vitamin C.