Labels warning of health risks associated with infant formula are being sought by Food Standards Australia New Zealand.
An FSANZ consultation paper calls for submissions on proposals, including warnings which could either replace or be in addition to the "breast is best" statement, already mandatory on infant formula products.
Risks associated with not breastfeeding include slower cognitive development, weaker immunity and obesity.
The idea has divided experts.
Midwife and founder of the Holistic Baby support group Cathy McCormick said the warnings would distress mothers forced to use formula and was unsure if putting labels on a formula cans would stop them using it.