Question

3. Table 4 below compares the compositions of human and bovine milk. Cow Table 4 Nutrient (g/L) Human Protein 11 Fat 45 Carbohydrate (lactose) Calculate the caloric value per litre of each kind of milk. Which one provides more energy per unit volume? (1 pt) 4. It is frequently recommended that a lactating woman should consume an extra 500 kcal/day, in addition to her normal diet. If she is producing 2 L/day of milk, what is her expected weight change per day? (refer to Table 4 above) (1 pt)

Answer 1

3.As per the calculation the 1 calorie = 0.129 g. Therefore the following will be the energy content for human and cow milk.

Nutrient (cal/L)	Human	Cow
Protein	85	271.31
Fat	348.837	286.821
Carbohydrate	527.131	379.844

Toral

960.968

937.796

According to the above information it can be seen that the energy content of the human milk is more than that of the cow as well the carbohydrate lactose present in the human milk is more than that of the cow which will be used as a primary energy source. Thus based on the above information the human milk is more effective.

4. The weight gain by the extra diet of the 3 Kcal is almost the 0.2-0.9 kg and does not change when the mother is lactating the maximum milk of the 1L/day. Thus considering this values it can be calculated that if the 3Kcal= 0.2 kg then for 500 Kcal = 33.33 kg but as the milk production is doubled as 2L/day the value for the weight gain will reduce down to the 33.33/2 =16.665