diseases caused by deficiency of VITAMINS & MINERALS (Science)
Transcript of diseases caused by deficiency of VITAMINS & MINERALS (Science)
SCIENCE
7th
-BY PANKTI DAVE
This lesson covers various This lesson covers various diseases caused by diseases caused by
deficiency of VITAMINS & deficiency of VITAMINS & MINERALS in our diet.MINERALS in our diet.
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.
VITAMINSVitamins has a specific & vital function in body.
Its essential for growth & development of body.
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)
Sources of vitamin CSources of vitamin C
LemonsLemons
AmlaAmla
OrangesOranges
SweetlimeSweetlime
Leafy vegetablesLeafy vegetables
Fresh fruitsFresh fruits
DISEASE CAUSED BY DEFICIENCY OF VITAMIN D
Vitamin D is essential for Development of bonesAbsorption of calcium & phosphorous in body
Deficiency of vitamin D causes
RICKETS ( Young children). Bones become soft & get bent.
SOURCES OF VITAMIN D
Sunlight Cod liver oil Shark liver oil Egg Butter Cow’s milk
CALCIUM
Calcium essential for
FORMATION OF BONESDeficiency of calcium causes
Teeth to wear away
Makes BONE BRITTLE
Sources of calciumSources of calcium
Milk & milk productsMilk & milk products
WheatWheat Leafy vegetablesLeafy vegetables CabbageCabbage CarrotsCarrots OrangesOranges AlmondsAlmonds
PHOSPHOROUS
Phosphorous essential for
GROWTH & DEVELOPMENT of body
Deficiency of phosphorous causes
Loss of weight
Stunted growth
SOURCES OF PHOSPHOROUS
Cereals -Wheat -Bajra -Corn
Pulses -Udid dal -Moong dal
Egg yolk Milk Leafy vegetables
IRON
1. Iron is important CONSTITUENT OF BLOOD2. Gives blood RED COLOUR3. Supplies OXYGEN to body4. Essential for producing RBC’S in body
Deficiency of iron causes ANAEMIA
An anaemic person gets tired easily.
Pregnant women need more iron.
SOURCES OF IRONSOURCES OF IRON
WheatWheat
JaggeryJaggery
Leafy vegetablesLeafy vegetables
DatesDates
IODINEIODINEIodine 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
SOURCES OF IODINE
Use of iodised salt in food preparation
ILL EFFECTS OF INTOXICATING SUBSTANCES
Intoxicating substances are very harmful to human body
They can be at times fatal to health
INTOXIC SUBSTANCES INCLUDES
Chewing tobaco
Smoking cigarettes or bidis
Drinking alcohol
Taking drugs
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”
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
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
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.