Can a baby have breast milk or formula immediately after eating complementary foods but still feeling hungry?
A baby’s growth and development occur very rapidly; within just a few months, many complementary foods can be introduced. Generally, babies can begin eating complementary foods at around six months of age. Below, we address this question.

Can a baby drink milk immediately after insufficient intake of complementary foods?
In most cases, yes—a baby may drink milk immediately after consuming insufficient complementary foods. Breast milk or formula helps replenish the nutrients missed due to inadequate intake of complementary foods.
Complementary foods generally refer to supplementary foods introduced after six months of age, when infants enter a critical period for developing chewing and swallowing skills and experience increased nutritional and energy requirements. At this stage, breast milk or infant formula alone may no longer fully meet their energy and nutrient needs. Common complementary foods include fruit purees (e.g., apple, pear, banana), vegetable purees, and fish purees. Their primary role is to supply essential nutrients required for an infant’s growth and development.
Because infants’ gastrointestinal functions are still immature and their ability to adapt to newly introduced complementary foods is relatively weak, digestive disturbances may easily occur. Therefore, complementary foods should be introduced gradually and progressively. If an infant does not consume enough complementary food at a given meal, offering milk is appropriate—and beneficial—as it provides readily absorbable nutrition.
When feeding milk after insufficient intake of complementary foods, caregivers should ensure appropriate portion sizes, carefully monitoring the infant’s appetite and stopping once satiety is reached. Overfeeding with milk may lead to indigestion and, over time, cause aversion to milk or food.
The above outlines whether infants can drink milk immediately after insufficient intake of complementary foods. We hope this information is helpful to you.