This 2020 study looks at the potential benefits of kava as a clinical nutrient and possible clinical challenges. It reviews the different clinical benefits found by previous kava research and highlights the evidence behind these claims and potential risks or challenges the research might face.
Kava and its diversity
The researchers discuss the rich tradition around kava and how not all kava is the same. The differences differ from island to island. This can be how it’s drunk, the amount consumed, and the cultivar of kava grown. Over 150 types of kava plants are grown, each with unique properties. The location where they are grown impacts what kavalactones are present, giving the diversity in effects. Because of this diversity, some have called for standardizing kava. Current standards are focused on kavalactone content.
How kava regulates inflammation in the body
Inflammation is connected to many different health conditions, including cancer, chronic pain, and different brain disorders. Kava research suggests that it can relieve pain, and an older study showed kava’s anti-inflammatory properties. It’s the kavalactones that are the active component against inflammation by acting on certain inflammatory pathways. Interestingly, chronic use of kava has led to symptoms of inflammation in some people.
Neurological functions of kava
Through kava research, we know that kava works on the GABA neurotransmitter system, which gives kava its calming and relaxing effects. The researchers talk about the potential neuroprotective properties that have been linked to helping reduce the risk of Alzheimer’s and Parkinson’s diseases. The best-known neurological benefit is regarding anxiety. Because kava works in the brain, it naturally reduces anxiety. Some studies suggest that kava could be an alternative to traditional anxiety medications. However, some of the studies have conflicting results.
Kava research and cancer prevention
In places where people regularly drink kava, like the Pacific Islands, there are fewer cases of cancer. Specifically, men have lower cancer rates than women, which is the opposite trend of cancer seen in other parts of the world. It seems that certain kavalactones hold anti-cancer properties, particularly lung cancer in smokers. Kava may also protect against bladder, prostate, and colon cancers. Studies have shown that flavalactones A and B may act as anti-cancer by stopping cancer cell growth and spread. Some parts of kava may even help fight cancer, but more research needs to be done to understand this.
Kava safety
While kava is considered safe, the type and amount you drink can have different effects. There have been reports that kava causes liver damage. However, it’s been proven that kava itself isn’t to blame; it’s likely that kava in combination with other substances caused the damage. Traditionally, kava hasn’t raised significant health concerns after centuries of use.
Conclusions of kava research
Kava is a traditional plant that has been used ceremonially and medicinally for centuries. It has recently started being used as an herbal supplement in North America and Europe. While there is still a lot to learn, it’s showing promise in treating inflammatory, neurological, and cancer conditions, among other chronic health conditions.
Link to original article:
Kava as a Clinical Nutrient: Promises and Challenges: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7600512/
* Please note that the majority of kava research pertains to kava extracts, which often undergo significant processing and may contain additional ingredients and fillers that can influence their efficacy. It is crucial to consider this distinction when reading about kava studies. To draw an analogy, enjoying natural kava as a beverage can be likened to experiencing a freshly brewed cappuccino, whereas kava extracts are akin in functionality to a caffeine pill. Both forms have their unique benefits and can cater to different preferences and needs. While it’s helpful to understand research on kava extracts, please view it critically and remember that natural kava offers a uniquely holistic experience.
