Kava, also known as Piper methysticum, is a traditional plant that has been used for its medicinal and ceremonial properties in the South Pacific for centuries. It is known for its ability to induce relaxation, reduce anxiety, and improve sleep quality. However, concerns have been raised about the potential risk of liver toxicity associated with the consumption of kava.
There are two main types of kava, noble kava and non-noble kava. Non-noble kava is often referred to as "tudei" or "two-day" kava and is known to contain high levels of a group of compounds called flavokawains, which are believed to be responsible for the liver toxicity associated with kava consumption. In contrast, noble kava is a cultivar of kava that is grown and processed specifically to minimize the presence of these compounds, making it a safer choice for consumption.
Research has shown that noble kava is generally safe for consumption when taken in appropriate amounts. In fact, a review of 85 studies conducted by the World Health Organization (WHO) concluded that the use of noble kava was not associated with an increased risk of liver toxicity or any other adverse health effects when consumed in moderation.
However, it is important to note that there have been rare cases of liver toxicity associated with the consumption of noble kava, although the exact cause of these cases remains unclear. These cases are believed to be due to a combination of factors, including the use of kava supplements, excessive consumption of kava, and pre-existing liver conditions.
To minimize the risk of liver toxicity, it is important to only consume noble kava and to avoid non-noble kava or kava supplements. It is also recommended that individuals with pre-existing liver conditions or those who are taking medications that may affect liver function consult with a healthcare provider before consuming kava.
In summary, noble kava is generally safe for consumption when taken in moderation and in the appropriate form. While there have been rare cases of liver toxicity associated with kava consumption, these cases are believed to be due to a combination of factors and are not typical of normal kava use. As with any herbal supplement, it is important to use caution and consult with a healthcare provider before consuming kava, particularly if you have pre-existing liver conditions or are taking medications that may affect liver function.