A viral social media post from a concerned citizen has ignited widespread public alarm over the potential adulteration of kava in Tonga.

Veiuto Manuofetoa circulated Facebook images purporting to show a kava product adulterated with an unknown white powder.

The post, which has since gone viral, claimed the additive was not traditional kava and urged others to be cautious.

Manuofetoa claimed the substance had a strange taste and lacked the characteristic flavour of kava.

He suggested that the adulteration was a clear sign that some sellers were prioritising profit over public safety.

He also advised consumers to be cautious of kava that looks unusually fine, has a strange smell, or shows signs of being mixed with other substances.

Kava, a traditional drink made from the root of the piper methysticum plant, is a cornerstone of Tongan social and cultural life.

The potential adulteration of the sacred beverage has caused significant alarm, amplified by the rapid spread of the initial warning on social media.

The public is encouraged to report any suspicious kava products directly to local health authorities.