Which nutrient is most essential during lactation for both mother and infant?

During lactation, protein is the most essential nutrient for both the mother and the infant. For the breastfeeding mother, adequate protein intake is crucial because it supports the body's increased demands during this period, helping to maintain muscle mass, energy levels, and overall health.

For the infant, protein is vital for growth and development. Breast milk is composed of various proteins that provide essential amino acids necessary for the baby's rapid growth, tissue development, and immune function. These proteins also play a role in the formation of antibodies and enzymes that are crucial for both metabolic processes and the immune system.

While fats, vitamins, and carbohydrates also play important roles in providing energy, supporting brain development, and ensuring various metabolic functions, protein stands out during lactation for its direct contribution to growth and development for the infant as well as supporting maternal health. This makes it an essential nutrient in this stage of life for both the mother and her child.