The puffer fish is not poisonous when it is born, because it slowly accumulates toxins after eating a lot of toxic algae, thus forming a highly toxic substance in the body. Therefore, farmed puffer fish will not eat toxic algae, and will not be highly toxic in the body, so they will become nontoxic puffer fish.
But in fact, there is no specific research to show whether puffer fish is highly toxic because of eating toxic algae, which is still an unsolved mystery, but now it is possible to raise non-toxic puffer fish.
Although the cultured non-toxic puffer fish is not toxic, we can't eat some parts, and the liver and blood of puffer fish still need to be removed.
Just in case, because there are too many cases of eating puffer fish poisoning, the state also prohibits everyone from eating poisonous parts of puffer fish, so even if you eat non-toxic puffer fish, you need to pay attention to safety. After all, the toxin of puffer fish is too strong, and eating a little will kill you!