The Israeli health ministry has ruled that Heinz tomato ketchup must now be sold as "tomato seasoning" there.
Rival ketchup maker Osem, the top selling brand in Israel, had said the Heinz product did not have sufficient tomato content to be called ketchup.
In January Osem said it had Heinz ketchup tested and found it contained 21% tomato concentrate. Israel requires ketchup to have 41% tomato concentrate.
Heinz's Israeli distributor is reported to be seeking a change in regulations.