Which of the following can help improve poor milk supply?

Breastfeeding frequently on demand is a crucial factor in improving poor milk supply. The principle behind this approach is based on the supply-and-demand mechanism that governs lactation. When a baby breastfeeds more often, it stimulates the mother's body to produce more milk due to increased demand. Additionally, frequent breastfeeding helps ensure that the baby's nutritional needs are met and can aid in establishing a robust milk supply.

By allowing the baby to feed whenever they show signs of hunger, the mother's breasts are emptied more regularly. This emptying is important, as it signals the body to produce more milk. A well-established milk supply is often the result of frequent and effective feeding.

The other approaches, such as breastfeeding on a strict schedule or limiting feedings, do not align with the natural needs of the infant. Such methods can lead to decreased milk supply because they do not stimulate the breasts as effectively as frequent, demand-driven feedings would. Using formula exclusively may also lead to less frequent breastfeeding, ultimately diminishing the natural stimulation needed to support milk production.