Primary Sources of Dihydromyricetin
Dihydromyricetin (DHM), a flavonoid with potential health benefits, is not widely available in the standard Western diet. The most significant natural sources are two specific plant species with a long history in traditional Asian medicine. Understanding these primary sources is key to sourcing this compound, whether through herbal teas or concentrated supplements.
The Japanese Raisin Tree (Hovenia dulcis)
Arguably the most famous source of DHM, the Japanese raisin tree (Hovenia dulcis) is native to Japan, China, and Korea. It has been used for centuries in traditional remedies, particularly for supporting liver health and mitigating the effects of alcohol. The DHM is primarily concentrated in the fruit and seeds of the plant. While the fruit itself is edible and tastes somewhat like a raisin, consuming enough of it to match the concentration found in supplements would be impractical. This is why most commercial DHM supplements are derived from extracts of the Japanese raisin tree.
Chinese Vine Tea (Ampelopsis grossedentata)
Also known as 'Teng Cha,' Chinese vine tea (Ampelopsis grossedentata) is another potent natural source of DHM. The dried leaves and stems of this plant contain very high levels of the flavonoid, with some extracts reporting DHM concentrations as high as 30-40% of the plant's dry weight. This tea has been consumed for hundreds of years in China for its numerous health benefits, including antioxidant and anti-inflammatory properties. For those seeking DHM from a food source, brewing this herbal tea is one of the most effective and traditional methods.
Plants Containing Dihydromyricetin
Beyond the two primary sources, DHM can be found in lower concentrations in several other plants, though these are typically not consumed in the quantities needed for a significant effect.
- Pinus and Cedrus species: Some species within these pine and cedar genera have been identified as minor sources of DHM.
- Rhododendron cinnabarinum: This species of Rhododendron also contains DHM.
- Salix sachalinensis: A type of willow, this plant has been reported to contain the flavonoid as well.
It is important to note that the concentration of DHM in these plants is significantly lower than in the Japanese raisin tree and Chinese vine tea, and they are not typically relied upon as sources of this flavonoid.
Comparison of Dihydromyricetin Sources
| Source | Botanical Name | Part Used | Primary Use | DHM Concentration | Common Consumption Method |
|---|---|---|---|---|---|
| Japanese Raisin Tree | Hovenia dulcis | Fruit, seeds | Liver support, hangover relief | High in extracts | Supplements, extracts |
| Chinese Vine Tea | Ampelopsis grossedentata | Leaves, stems | Herbal tea, antioxidants | Very high | Brewed tea, supplements |
| Common Fruits (e.g., Berries, Apples) | Various | Fruit | General nutrition | Very low | Whole foods, juices |
| Pinus and Cedrus species | Various | Unspecified | Not for consumption | Low | Not consumed for DHM |
What About Common Foods?
While some sources may mention DHM in common fruits like citrus, berries, and apples, it is crucial to understand that these foods contain only trace amounts, if any. The research and traditional use of DHM are overwhelmingly focused on concentrated extracts from the Japanese raisin tree and Chinese vine tea. Relying on a typical diet to obtain a therapeutic amount of DHM is not feasible. For this reason, those interested in the potential health benefits of this flavonoid often turn to dietary supplements.
Conclusion
In summary, the search for significant food sources of dihydromyricetin (DHM) leads directly to two potent botanicals: the Japanese raisin tree and Chinese vine tea. While DHM exists in trace amounts in various other plants, it is the concentrated extracts derived from these two sources that are used for medicinal and supplemental purposes. Consuming foods with trace DHM is not a viable strategy for obtaining a meaningful dosage. For a reliable intake, concentrated extracts or teas from these specific plants are the recommended options. This approach aligns with the long-standing traditional use and modern research focusing on these specific sources.
