When a baby is first born, the milk they receive is called colostrum. As the baby grows, the milk transitions into mature milk. Scientists looked at 25 different studies to see how phospholipids, which are important fats in the milk, change during these stages. They found that the concentration of these fats is highest in colostrum and decreases as the milk matures.
Specifically, colostrum contains about 251.60 mg/L of total phospholipids, while transitional milk has 234.71 mg/L. By the time it becomes mature milk, the concentration drops to 197.00 mg/L. These findings help researchers understand the nutritional makeup of human milk at every stage of early life.
One important finding is that the way scientists measure these fats in a lab can change the results. Different detection methods significantly affected the reported amounts of total phospholipids and specific types like PE and PI. This research provides a foundation for how these fats might be used in infant formulas.