Question

Human colostrum contains more of the following than mature human milk except
A. Lactose
B. Minerals
C. Proteins
D. Vitamin A

Answer 1

Hint: Human colostrum (HC) is the first post-born milk provided with growth factors that are vital for the nourishment, growth, development and passive growth of newborns. It has bioactive molecules that protect against infection and inflammation and lead to immune maturation, organ development, and healthy microbial colonisation.

Complete answer: For the first few postpartum days, colostrum is the deep lemon-coloured fluid secreted by breasts. The colostrum in the milk provided by the mother during the first few days after birth is slightly yellow in colour. It is rich in nutrients, antibodies, vitamins and proteins. In colostrum, antibodies are demonstrable; immunoglobulin A can protect the newborn from enteric pathogens. Other host resistance factors are found in human colostrum and milk, including complement, macrophages, lymphocytes, lactoferrin, lactoperoxidase, and lysozymes. There are β-lactalbumin, β-lactoglobulin, and casein in human milk. Whey contains significant quantities of interleukin-6, with a colostrum peak frequency. It is deliberately secreted into breast milk by prolactin. All vitamins except vitamin K and little iron are also in milk. Lodo, gallium, technetium, indium, and sodium are concentrated in breast milk as well. In breast milk, radioactive scanning materials appear easily. The content of lactose in colostrum is more than that of the mature human milk.
Hence, the correct answer is option A.

Note: The initial substance produced by the alveolar secretory cells is colostrum. It occurs in the early second trimester and is manufactured after delivery in the first few days. It is translucent and its yellow colour is derived from its high content of beta-carotene. It is higher than mature milk in protein and lower in carbohydrates, fat and calories.