International Board of Certified Lactation Consultant (IBCLC) Practice Exam

What is one of the functions of the Milk Fat Globular Membrane (MFGM)?

1. Provides vitamins

2. Prevents clumping of fat

3. Enhances flavor

4. Increases shelf life

The correct answer is: Prevents clumping of fat

The Milk Fat Globular Membrane (MFGM) serves several important functions in human milk, one of which is its ability to prevent clumping of fat globules. This is crucial for ensuring uniform distribution of fat in the milk, which aids in optimal digestion and absorption of the fats by the infant. The MFGM acts as a barrier, helping to keep the fat droplets separate, which is especially important because fat is a major source of energy for infants. In addition to preventing fat clumping, the MFGM also plays a role in various biological processes, such as the development of the infant's immune system and gut health. However, the specific function of preventing fat cohesion directly relates to the physical properties of milk and how it is utilized by the infant, making it a fundamental aspect of its composition. Although there are other functions of components in human milk, such as providing vitamins or influencing flavor, those do not pertain specifically to the role of the MFGM in maintaining the stability of fat globules. Similarly, while some milk components can contribute to preservation, the primary role of the MFGM focuses on the emulsification and preventing fat clumping, enhancing the overall digestibility of milk for the infant.