International Board of Certified Lactation Consultant (IBCLC) Practice Exam

What gives colostrum its characteristic yellow color?

1. Carotenoids

2. Iron

3. Vitamin A

4. Beta-glucans

The correct answer is: Vitamin A

Colostrum has its characteristic yellow color primarily due to the presence of carotenoids, which are natural pigments found in various fruits and vegetables. In the context of colostrum, carotenoids, particularly beta-carotene, are responsible for this yellow hue. Beta-carotene, a type of carotenoid, is a precursor to vitamin A and is highly concentrated in colostrum, which may also influence vitamin A levels in the product. Although vitamin A plays a significant role in health, particularly for vision and immune function, it is the carotenoids that provide the distinct yellow coloration. Iron and beta-glucans don't contribute to this color, making carotenoids the primary factor in colostrum's distinctive appearance. Understanding this link between carotenoids and the color of colostrum highlights the nutritional components that are critical for the neonate’s health.