Dark Honey Benefits: Buckwheat, Knotweed and the Color Question
Honey comes in a surprising range of colors, from nearly clear to deep brown that looks almost like molasses. Darker honeys such as buckwheat and knotweed have a devoted following, partly for their bold flavor and partly because of research suggesting they carry more antioxidants than pale varieties. This article explains why color matters, what the studies on buckwheat honey found, what is still unknown, and how to get the most enjoyment out of a dark jar.
Why some honeys are darker
Honey's color comes mostly from the nectar it was made from. Each plant contributes its own mix of minerals, pigments and plant compounds, and some flowers produce nectar that gives a far deeper shade. Buckwheat and knotweed are classic examples, both blooming later in the season and producing honey in the dark amber to nearly black range.
Color also shifts with age and storage. Honey slowly darkens over time, especially in warm conditions. That is natural and does not mean the honey has gone off, but it is one reason the same variety can look slightly different from jar to jar.
Antioxidants and color
Researchers have noticed a fairly consistent pattern: darker honeys tend to have higher levels of phenolic compounds, a family of plant chemicals that act as antioxidants in lab tests. Cleveland Clinic notes that darker honey may contain more antioxidants than lighter honey and singles out buckwheat honey as especially high.
Healthline's overview of buckwheat honey points to an early study that ranked buckwheat among the highest in antioxidant capacity of the commercial honeys tested. Cleveland Clinic adds a helpful perspective, though: the difference between dark and light honey is not large enough to choose one over the other purely for health reasons. Flavor is a perfectly good reason to pick a jar.
What the buckwheat honey studies found
A 2003 study in the Journal of Agricultural and Food Chemistry gave healthy adults buckwheat honey and measured antioxidant activity in their blood afterward. Researchers reported a rise in the blood's antioxidant capacity in the hours after eating the honey. A related study found a similar effect when buckwheat honey was stirred into black tea.
These studies were small, involved a few dozen people, and measured short-term changes in blood markers rather than long-term health. They suggest that compounds from dark honey can be absorbed, which is interesting, but they do not show that eating dark honey changes the risk of any disease. More recent lab research has also looked at buckwheat honey's phenolics and their interaction with gut bacteria, an area that is still in early stages.
If you have a specific health concern, a doctor or dietitian can help you think about diet as a whole. No single sweetener is likely to make or break your health.
What about knotweed honey?
Knotweed honey, made from the late-summer blooms of Japanese knotweed, is much less studied than buckwheat. It is dark, smooth and often described as having notes of molasses or dried fruit, with a gentler finish than buckwheat. Because it is a dark honey, it likely shares the general pattern of higher phenolic content, but there is little research on it specifically.
We think it is fair to say so plainly. Knotweed honey is a delicious choice for people who want depth without buckwheat's earthy intensity, and that is the main reason to try it.
How to enjoy dark honey
Dark honeys have strong personalities. Buckwheat is malty, earthy and slightly tangy, and it pairs well with sharp cheeses, rye bread, gingerbread and barbecue glazes. Knotweed is a little softer and works nicely in coffee, over oatmeal or drizzled on roasted squash.
Al Safa's Raw Buckwheat Honey and Raw Knotweed Honey are raw and unpasteurized, strained of wax only, so they keep their full natural flavor. If you are new to dark honey, the sampler lets you taste them side by side with lighter varieties and find the one you like best.
- Pair buckwheat honey with blue cheese or aged cheddar
- Stir knotweed honey into coffee or black tea
- Use either in marinades for pork or salmon
- Swap for molasses in small amounts in spiced baking
Sources
Outside health sources we used for this article. They open in a new tab.
- Buckwheat Honey: Benefits, Uses, and More · Healthline
- 5 Health Benefits of Honey · Cleveland Clinic
- Honey with high levels of antioxidants can provide protection to healthy human subjects · National Library of Medicine (PubMed)
- Phenolics and Carbohydrates in Buckwheat Honey Regulate the Human Intestinal Microbiota · National Library of Medicine (PMC)
Frequently asked questions
- Is dark honey healthier than light honey?
- Dark honey tends to contain more antioxidants, but the difference is modest and honey is still mostly sugar. Choose based on flavor, and keep portions moderate whichever color you prefer.
- What does buckwheat honey taste like?
- Buckwheat honey is bold, malty and earthy, sometimes compared to molasses. It is less sweet-tasting than light honeys and pairs well with strong flavors.
- Can children have buckwheat honey?
- Children over 12 months can have honey in small amounts. Never give any honey, including buckwheat, to babies under 12 months because of the risk of infant botulism.
- Why is my dark honey crystallizing?
- Crystallization is natural and depends on the balance of sugars in the nectar. Set the jar in warm water to soften it, and avoid microwaving it.
Al Safa Honey is a food producer, not a medical provider. Nothing here is medical advice, and these statements have not been evaluated by the Food and Drug Administration. Talk to your doctor about any health concern. Never give honey of any kind to a baby under 12 months old.
