According to BBC, prosecutors have also requested a fine of 20 million won (around $13,500) for the two-Michelin-star restaurant, arguing that ants are not among the insect species approved for human consumption under South Korean law.

The case emerged after officials from the Ministry of Food and Drug Safety reviewed online customer posts showing desserts topped with ants.

Investigators estimate the restaurant used around 49,000 imported ants from the United States and Thailand across several dishes over a four-year period.

The restaurant owner admitted serving ants but said they were used only as a garnish for sorbets in a small part of the restaurant’s 15-course tasting menu. Diners, he argued, were informed beforehand and could choose alternative toppings, including edible flowers and fermented vinegar.

In its investigation, health authorities also found that the ants contained up to 55 times more heavy metals than insects typically approved for consumption, according to The Chosun Daily.

South Korea currently permits only 10 insect species for human consumption, including grasshoppers, locusts and two-spotted crickets. Authorities assess food safety, toxicity, nutritional value and whether insects can be bred and processed hygienically before approving them as food.

The restaurateur also argued that ants are commonly served in fine dining restaurants in countries including Australia, Denmark and the United Kingdom.

Court documents did not identify either the restaurant or its owner. South Korea currently has 10 restaurants with two Michelin stars, all located in Seoul.

Under the Michelin Guide’s rating system, two stars recognise restaurants offering “excellent cooking” that is “worth a detour”.

The court is expected to deliver its verdict on 2 September.

Although ants are considered a delicacy in parts of Asia, Africa and Latin America, including Thailand, Cambodia and Colombia, they remain unapproved for consumption under South Korean food regulations.