Manuka honey made by bees foraging on Australian native plants has much higher antibacterial properties than the famous New Zealand variety, according to new research, but New Zealand producers are trying to trademark the name. New Zealand-made manuka honey has long been considered a superfood for everything from sore throats to gingivitis but as microbiologist Dr Nural Chokedin explains, scientists now say that the Australian-made version could be the most powerful antibacterial honey of all.