Food and Nutrition
Nutrition 
– It is the scientific study of food and its relation 
to health.
– Food has been used to treat in conjunction ...
The food groups 
CARBOHYDRATES
• These are the body’s main source of 
energy
a) Simple carbohydrates (sugar)
• This sugar ...
b) Complex carbohydrates (starch)
    These carbohydrates are found in foods  
derived from plants like potatoes.
c) It is...
PROTEINS
a) Proteins help to repair and build the body 
tissues. It also regulates body processes 
as hormones, antibodies...
d) Incomplete proteins are deficient in one
or more amino acids
e) Protein deficiency results in impaired
healing weight l...
FATS
• These are concentrated forms
of energy stores. It is present
in different forms like
cholesterol, omega fatty acids...
• Plant sources include edible nuts and
oilseeds.
• Animal sources include whole milk, eggs,
lard, fish etc.
• Deficiency causes growth failure and skin
problems.
VITAMINS
• These are a group of chemicals which are
vital for the body. These chemicals are
found in green leafy vegetable...
a) Fat soluble vitamins- A,D,E,K. These
require fat for there absorption and are
stored in the body.
b) Water soluble vitamins- B complex group,
C. These are sensitive to environmental
conditions and are not stored in the b...
Diseases caused by deficiency of
certain vitamins
Vitamin Disease caused
by the
deficiency of
that vitamin
Treatment
Vitam...
Vitamin B Redness of the
tongue
Roughness of
the skin
Include pulses,
leafy
vegetables and
milk in the diet
Vitamin C Blee...
MINERALS
• These are inorganic elements occurring
as salts.
• These help to build body tissues regulate
body fluids.
• The...
• Minor minerals like iron, sulphur are
required in small amounts.
• Trace elements like iodine, zinc, fluorine
are requir...
WATER
a) 65% of an adults body
consists of water.
b) It is found as intracellular,
extra cellular and
intercellular fluid....
d) Sources include food , metabolic water,
ingested water
e) Deficiency (dehydration) causes fatigue,
headache etc.
The food pyramid
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Food

  1. 1. Food and Nutrition
  2. 2. Nutrition  – It is the scientific study of food and its relation  to health. – Food has been used to treat in conjunction  with or with or without medicine. – It is a combination of processes by which all  parts of the body receive and utilize materials. – Age, religion, economic status, agriculture,  education are some factors which affect  human nutrition. – Functions of nutrients include supplying  energy to the body, building and repairing  body tissues and regulating body processes.
  3. 3. The food groups  CARBOHYDRATES • These are the body’s main source of  energy a) Simple carbohydrates (sugar) • This sugar is found naturally in some  foods like fruits and milk . The sugar which  we use is derived from these natural  sugars .
  4. 4. b) Complex carbohydrates (starch)     These carbohydrates are found in foods   derived from plants like potatoes. c) It is digested in the mouth and further by    pancreatic and intestinal enzymes. d) Sources include cereals, vegetables,   jiggery etc.
  5. 5. PROTEINS a) Proteins help to repair and build the body  tissues. It also regulates body processes  as hormones, antibodies, enzymes etc. b) It is digested in the stomach and the  small intestine. c) Complete proteins contain all essential  amino acids and are of animal origin.
  6. 6. d) Incomplete proteins are deficient in one or more amino acids e) Protein deficiency results in impaired healing weight loss etc. f) Sources include eggs, meat, fish, poultry, pulses, soybeans etc.
  7. 7. FATS • These are concentrated forms of energy stores. It is present in different forms like cholesterol, omega fatty acids etc. • They supply heat, insulation, padding for vital organs etc. • It is digested by pancreas and the intestines.
  8. 8. • Plant sources include edible nuts and oilseeds.
  9. 9. • Animal sources include whole milk, eggs, lard, fish etc.
  10. 10. • Deficiency causes growth failure and skin problems.
  11. 11. VITAMINS • These are a group of chemicals which are vital for the body. These chemicals are found in green leafy vegetables, fresh fruits etc. A deficiency of these in our diet will cause certain diseases .
  12. 12. a) Fat soluble vitamins- A,D,E,K. These require fat for there absorption and are stored in the body.
  13. 13. b) Water soluble vitamins- B complex group, C. These are sensitive to environmental conditions and are not stored in the body. c) Sources include vegetables, fruits, nuts etc.
  14. 14. Diseases caused by deficiency of certain vitamins Vitamin Disease caused by the deficiency of that vitamin Treatment Vitamin A Night blindness Include leafy vegetables , ripe yellow vegetables, carrots, papayas and milk in the diet
  15. 15. Vitamin B Redness of the tongue Roughness of the skin Include pulses, leafy vegetables and milk in the diet Vitamin C Bleeding of the gums Include amla, lemons, oranges and sprouts in the diet Vitamin D Bending of the bones of the legs Bending of the back Expose the body to the early morning sun. Include milk in the diet
  16. 16. MINERALS • These are inorganic elements occurring as salts. • These help to build body tissues regulate body fluids. • These are required in small quantities and are vital to the body. • Major minerals like calcium sodium are required in large amounts.
  17. 17. • Minor minerals like iron, sulphur are required in small amounts. • Trace elements like iodine, zinc, fluorine are required in micro amounts. • Sources include vegetables, water etc. • Deficiency symptoms are varied.
  18. 18. WATER a) 65% of an adults body consists of water. b) It is found as intracellular, extra cellular and intercellular fluid. c) It acts as a solvent, transports nutrients and acts as a lubricant. It also regulates body temperature.
  19. 19. d) Sources include food , metabolic water, ingested water e) Deficiency (dehydration) causes fatigue, headache etc.
  20. 20. The food pyramid

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