International Board of Certified Lactation Consultant (IBCLC) Practice Exam

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What is the caloric content of mature human milk per ounce?

15 calories
20 calories
25 calories
30 calories

The correct answer is: 20 calories

Mature human milk contains approximately 20 calories per ounce. This caloric content is important as it reflects the nutritional needs of infants during their rapid growth and development in the early months of life. The composition of mature milk, which includes fats, proteins, and carbohydrates, is tailored to provide a balanced source of energy for infants, facilitating their physical and cognitive development. The presence of these calories in human milk is crucial for meeting the energy demands of growing infants, especially as they double their birth weight within the first few months. The metabolic processes of infants require adequate energy not just for growth, but also for maintaining body temperature and supporting overall health. Understanding the caloric content can help lactation consultants and healthcare professionals provide accurate advice on breastfeeding and supplementation when necessary, ensuring that infants receive the necessary nutrients to thrive.