Catfish is omnivorous, its main food includes is aquatic insects, organic debris, etc., but also eat small fish, rodents and other living things, and even eat the carcasses of their own kind when they are not full. Because catfish are omnivorous, they are very resilient and can survive in polluted water bodies. In some sewage environments with chicken and pig manure, catfish can survive. But in the market, we see all the artificial breeding catfish, so it can be safely eaten.

Many people think that catfish is an omnivore, with a strong ability to live, and can survive in stinky gutters and fecal pollution, so they think it is a very dirty fish.

Eat fish to pay attention to what:

Not eat fish on an empty stomach ? Fish contains many purine substances, the substance needs rice (also known as carbohydrates) to break down, assuming that you eat fish on an empty stomach will lead to a rise in purine content in the body, acid-base imbalance, aggravate or lead to ventilation.

Eat less raw fish ? With the rise of Japanese food, sashimi has begun to have a vast market. In fact, a lot of sashimi contains a parasite called liver fluke, and eating too much of it can easily cause liver disease.

Don't kill it and eat it right away? Some people think that the fresher the fish, the better, so catch the fresh fish like to eat immediately killed, in fact, this wild fish will remain some toxic substances have not been decomposed.

Expanded Information:

Catfish have limits to their environmental tolerance. If the water quality is poor, catfish not only have difficulty reproducing, but also grow poorly. If the water body contains toxic substances, catfish will also be poisoned, and even death. Experimental studies on the toxicity of heavy metal cadmium in the water body on fish, the results found that when the cadmium in the water body reaches a certain concentration, grass carp, crucian carp, catfish will be poisoned to death, only the catfish resistance to poisoning to be stronger, leading to the death of the dose of its poisoning to be a little higher. There are also studies with sodium dichloroisocyanurate, bromochlorohydantoin, enemy killed catfish acute toxicity experiments, the results found that when the concentration of these pesticides increased, the catfish will be the same toxic reaction, serious death.

From the current data, the vast majority of regular farmed catfish do not have safety problems such as excessive heavy metals and can be safely consumed.

People's health network catfish is not a dirty fish