UMF vs MGO: What Do Manuka Honey Ratings Mean?

If you have been researching Manuka Honey, you have probably come across terms such as UMF, MGO, DHA and Leptosperin. These grading systems are commonly displayed on Manuka Honey labels, yet many consumers are unsure what they actually mean.

One of the most common questions we hear is:

"What is the difference between UMF and MGO, and which one should I pay attention to?"

The simple answer is that both measurements are important, but they measure different things.

MGO measures the concentration of a naturally occurring compound found in Manuka Honey called methylglyoxal. UMF is a broader quality assurance and authenticity system that incorporates MGO while also assessing additional markers that help verify the honey's origin, freshness and quality.

Because different brands often focus on one system or the other, confusion has developed within the marketplace. Some products display only an MGO rating, while others prominently feature a UMF rating. Consumers are often left wondering whether these systems are competing standards or whether one is better than the other.

In reality, UMF and MGO are closely related. Understanding how they work together can help you make a more informed decision when choosing genuine New Zealand Manuka Honey.

For many years I have worked with New Zealand Manuka Honey and have regularly been asked to explain the relationship between UMF and MGO ratings. In the short video below, I explain how these grading systems relate to each other and why understanding them can help consumers select authentic Manuka Honey with confidence.

After watching the video, continue reading below for a more detailed explanation of what UMF and MGO mean, how they are measured, and how they can be used together when comparing Manuka Honey products.