What key difference distinguishes cow's milk from human breast milk?

The key difference that distinguishes cow's milk from human breast milk is the composition of protein, calcium, and carbohydrates. Cow's milk contains more protein and calcium compared to human breast milk, while it has fewer carbohydrates.

In human breast milk, the protein content is lower and more tailored to the needs of human infants. This is crucial because the protein in breast milk is designed to be easily digestible for a developing infant, whereas the higher protein levels found in cow's milk are not as suitable for human babies. Additionally, the carbohydrate content, specifically lactose, is higher in human breast milk, providing the necessary energy for infants.

This composition difference underscores the distinct nutritional needs of human infants compared to calves, which cow's milk is designed to support. The higher levels of protein and calcium in cow's milk may not align with the developmental needs of infants, making human breast milk the recommended source of nutrition in the early stages of life.