Almost all types of pufferfish contain tetrodotoxin. Eating improperly prepared pufferfish can lead to numbness and tingling sensation around the mouth, nausea, and vomiting and may lead to paralysis and respiratory failure and death.
Pufferfish is eaten in some fishing communities in Malaysia. While Johor Fisheries Department director Zainudin Abdul Wahab told Malaysian media that pufferfish has no value and is often thrown back out to sea by fishermen, it has been seen sold in markets in parts of Sabah and Sarawak.
https://www.channelnewsasia.com/…/malaysia-pufferfish…