A National Party MP who pushed for the burqa ban in Parliament has taken aim at halal food, suggesting money spent on certifying it may be funding terrorism and efforts to implement sharia.

Coaltion backbencher George Christensen said all products certified as halal, including Vegemite, should be labelled as such - so people can avoid buying them.

"It's lovely to know a jar of the salty black stuff is sponsoring the advocacy of robbing women of all of their marital property rights," Mr Christensen wrote.

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