The study, conducted by a team of scientists at Macquarie University, used 100 samples of honey sourced globally, including 38 Australian-branded honey samples.

It found more than half the samples sourced from Asia, mainly China, were adulterated, meaning the honey had been mixed with other non-honey substances.

Testing at the National Measurement Institute, the same high-security government lab used to test drugs seized by Border Force, found 27 per cent of overseas samples were not 100 per cent honey.

But the big shock was Australian honey.

Of the 38 honey samples sourced from supermarkets and markets, 18 per cent, or almost one in five, showed adulteration.

The adulterated honey was sourced from Victoria, Queensland, NSW and Tasmania.

It found 23 per cent of the nine samples tested in Tasmania were adulterated, one out of two samples sourced from NSW was adulterated, a third of the six samples sourced from Queensland weren’t pure honey and 29 per cent of the seven samples sourced in Victoria were fake.

Samples sourced from South Australia and Western Australia tested pure.

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