Monday 10 October 2011

Balanced diet


Definition:
            “A balanced diet is one which contains different types of foods in such quantities and proportions that the need for energy, amino acids, vitamins, minerals, fats, carbohydrates, and other nutrients are adequately met for maintaining health, vitality and general well-being and also makes a small provision for extra nutrients to withstand short duration of leanness.”

Percentage of food items in balanced diet:

Carbohydrate
50-70%
Fat
20-30%
protein
15-20%


Criteria of a balanced diet:
    I) easily available
    Ii) Sufficient to satisfy taste and appetite.
    iii) Diet should be palatable.
    iv) It should be easily digestable, absorbable and assimilable.
    v) Protein and fat should be obtained both from animal and vegetable sources. At least one third of the protein and fat should be of animal in origin.
    vi) It should contain sufficient vegetables and fruits.
    vii) Vitamins and minerals should be present in sufficient quantity.
    viii) Certain amount of cellulose or roughage should be present to promote peristalsis.


Diet of a pregnant mother:
l  i) Energy Intake: An additional minimum intake of 200 Kcal/day during the second and third trimesters.
l  ii) Proteins: An additional allowance of 14g/day of dietary protein.
l  iii) Other nutrients: A regular and adequate intake of all other nutrients, especially iron, folic acid and calcium. s

Additional allowance for pregnant mother:

Food item
Amount
Calories(Kcal)
Cereals
35g
118
Pulses
15g
52
Milk
100g
83
Sugar
10g
40










Major Malnutrition problems in Bangladesh:
            1.  Protein- energy malnutrition-          Kwashiorkor and marasmas.
            2.  Vit. A deficiency- Night blindness,             xerophthalmia and total blindness.
            3.  Iron deficiency- Anemia.
            4.  Iodine deficiency – Endemic goiter.
            5.  Khesari dhal intoxication-   Neurolathyrism.

Protein-Energy malnutrition (PEM)
            Protein-energy malnutrition (PEM) in early childhood is a spectrum of disease. At one end there is kwashiorkor, at the other end is nutritional marasmus and in the middle of the spectrum is marasmic kwashiorkor.



Etiological factors of PEM
            i) An inadequate diet, both in quantity and   
      Quality.
            ii) Infectious and parasitic diseases, 
      notably diarrhoea, respiratory,  infections, measles and the spectrum is marasmic  kwashiorkor.
            iii) Poor maternal health.
            iv) Large family size.
            v) Poor maternal health. 

WHO classification of PEM in young children:


Body weight
odema
Deficit in weight for height

Kwashiorkor
60-80

+
+
Marasmic kwashiorkor
<60

+
++
Marasmus
<60

0
++
Nutritional dwarfing
<60

0
Minimal
Underweight child
60-80
0
+


Welcome classifications

Weight for age
With oedema

Without oedema

60-80%

Kwashiorkor

Undernutrition

< 60%

Marasmic Kwashiorkor

Marasmus



Management of PEM
   Severe PEM whether kwashiorkor or marasmus, is dealt with in three phase:
1. Resuscitation –It includes correction of
 - Dehydration
 - Electrolyte disturbances
 - Acidosis
 - Hypoglycemia and
 - Treatment of infection.


Marasmus
Kwarshiorkor


          Difference Between Maramus and Kwashirkor 

Features

Marasmus

Kwashiorkor

Cause

Due to deficiency of calories and other nutrients in addition to protein.

Due to protein deficiency

Essential features
  1. Oedema
  2. Mental changes.
  3. Wasting

Absent
Marked, all skin and bone.
Usually absent

Present in the lower legs, sometimes face for generalized.
Less obvious, child looks flabby.

Variables features:
 1. Appetite
 2. skin changes
 3. hair changes

Usually good
Usually none
Slight change in texure.

Usually poor
Often, diffuse depigmentation.
Often sparse – straight and sky,
Dyspigmentation-greyish or reddish


2. Start of the cure- It includes refeeding, gradually working up the calories to 150 kcal/kg with protein about 1.5 g/kg.

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