The toxic puffer fish which contains tetrodotoxin, a potent neurotoxin, has killed more than 20 Japanese diners in the past 10 years.
It is currently only served at licensed restaurants, but local governments are now easing laws to make provision for unlicensed outlets who say they are losing business.
However, while demand for the fish is high, some people fear that the law change will make dining out more dangerous.
Al Jazeera's Mike Firn reports from Shimonoseki, Japan.
Source: Al Jazeera