mgo 55A multifloral manuka honey from New Zealand by Manuka Doctor. The manuka honey is tested and independently certified and uses the MGO raing scale.Home · Manuka Doctor Manuka Honey MGO 55 500g. Shop all Manuka Doctor. Manuka Doctor Manuka Honey MGO 55 500g. 4.8 (171). This product is discontinued. £15.00.