One fifth of the honey is Australian Manuka, made by bees working the flowers of Leptospermum, a native tree of Australia and New Zealand. Its grade is a number: MGO 250+ means at least 250 milligrams of methylglyoxal per kilogram, certified on every batch, at the threshold of the grade most people know as UMF 10+.
Manuka is studied for its effect on gut bacteria. In a four-week human trial, 20 g a day of high-grade Manuka left the gut's beneficial bacteria undisturbed, and in the lab Manuka supported Bifidobacterium growth in probiotic milk.* We use it for what it is: a premium, tested honey that belongs in a gut-brain routine.
Wallace 2010; Ibrahim 2026; Cokcetin 2016 for the MGO facts. MGO 250+ describes the Manuka, not the whole sachet.