Breastfeeding & Immunity

Breast milk contains antibodies, immune cells and other components that support an infant's developing immune system. Breastfeeding is not a guarantee that a baby will never become ill, but it provides important protection while the immune system matures.

How breast milk supports immunity
Colostrum, the first milk, is particularly rich in immune factors. Mature breast milk continues to provide antibodies and other protective components. These work alongside the baby's own immune system.

Breastfeeding and infections
Breastfed babies can still develop colds, diarrhoea and other infections. However, breastfeeding may reduce the risk or severity of some infections. Feeding during illness can also help maintain hydration and nutrition when appropriate.

Maternal health matters
A mother does not need a special expensive diet to make healthy milk. Adequate nutrition, fluids, rest and support are important. If the mother is unwell or taking medication, she should ask a healthcare professional whether breastfeeding can continue safely.

Vaccination still matters
Breastfeeding complements rather than replaces routine vaccination. Vaccines train the child's immune system in ways that breast milk alone cannot.

When to seek medical help?
A baby with breathing difficulty, poor feeding, marked lethargy, dehydration, repeated vomiting or a concerning fever should be medically assessed promptly.



Medical note: This article is for general health education and does not replace an examination, diagnosis or personalised medical advice. Treatment decisions should be made with a qualified healthcare professional.