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Nutrition

Question
14 out of 74
 

All are true about Cow’s milk except:



A Higher protein than human milk

B Low carbohydrates

C Contain more Na+ than human milk

D Contains whey protein more than casein

Ans. D Contains whey protein more than casein Ref: Park, 22nd Edi, Pg : 499 (Table-6) Pg : 574

Cow’s milk contains more casein (Lactglobulin) than whey protein (lactalbumin) in the ratio of 6:4 whereas human milk contains more whey protein than Casein in the ratio of 8:2. All the other facts with regard to cow’s milk are correct. Some important facts with regard to human & animal milk are as follows:

Buffalo

Cow

Goat

Human

Fat (g)

6.5

4.1

4.5

3.4

Protein (g)

4.3

3.2

3.3

1.1

Lactose (g)

5.1

4.4

4.6

7.4

Calcium (mg)

210

120

170

28

Iron (mg)

0.2

0.2

0.3

-

Vito C (mg)

1

2

1

3

Minerals (g)

0.8

0.8

0.8

0.1

Water (g)

81.0

87

86.8

88

Energy (kcal)

117

67

72

65

  1. There are two main ways in which the fats of human milk differ from those of other milks - first, levels of essential polyunsaturated fatty acids, especially linoleic acid and alpha­-linoleic acid are higher in human milk than in cow's milk;
  2. secondly, the fats of human milk are easier for the baby to digest and absorb than are those of cow's milk. With cow's milk, unabsorbed fatty acids tend to bind with calcium and prevent it from being absorbed. Although there is less calcium in human milk than in cow's milk, it is much better absorbed,
  3. Carbohydrate: Human milk contains more lactose than most other milks. It may be specially useful for the growing brain. [n the intestine, lactose helps the "right" kind of bacteria (Le., Lactobacillus bifidus) to grow. Lactobacillus and lactose help to keep the intestinal contents acidic, which inhibits the growth of harmful bacteria. Lactose plays an important role in maintaining low electrolyte concentration.
  4. Vitamins and minerals: If the mother takes adequate amount of vitamins, there is no reason why the child should have a vitamin supplement. The earlier teaching that human milk was deficient in vitamin D is no longer accepted. Recent work has shown that vitamin D is present in human milk in water-soluble form which was unknown to nutritionists. Human milk contains more vitamin A and vitamin C than cow's milk. Another factor which was supposed to be deficient in human milk was iron, but again recent work has shown that iron contained in human milk has a high level of bioavailability, thanks to complex phenomena (the action of lactoferrin, acidity of the digestive track, presence of appropriate proportions of zinc and copper). The coefficient of uptake of the iron in breast milk may be as high as 70 per cent, whereas it is only 30 per cent for cow's milk and infant formulas , and no iron supplement is necessary for the baby reared on human milk. Human milk is richer in copper, selenium and cobalt than cow's milk. It contains less sodium than cow's milk and does not put any unnecessary strain on the infant's kidneys. The calcium/phosphorus ratio is high, so that the uptake of calcium is better than cow's milk. The high phosphorus content of cow's milk causes this mineral to be assimilated to the detriment of calcium. It has the added disadvantage of combining with certain fatty acids to form non -soluble calcium soaps.

Nutrition Flashcard List

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