Manufacturers and exporters of infant milk formula are flummoxed by a decision that stops them putting a synthetic additive into toddler milk - even though it's allowed for babies.
Food Standards Australia New Zealand told the Trans-Tasman Ministerial Forum on Food Regulation the additive is safe for all children.
Food Safety Minister Aysha Verrall agreed but was outvoted by the Australians who approved it only for infant milk.
As Catherine Hutton reports the industry here is warning that could mean a huge competitive disadvantage.