Named the most dangerous fish for health

Fish is considered a very healthy product, containing easily digestible protein and omega-3 fatty acids. However, some types of fish are able to accumulate heavy metals and the liver takes the first serious blow.

According to a study published in eatthis.com, heavy metal salts can be found in large aged tuna. With constant consumption of such tuna meat, intoxication occurs.

- How to understand that you have been poisoned? There may be itching or tingling of the fingertips, muscle weakness. It is possible to have impaired coordination, speech, and hearing, as well as reduced vision, says Dr. Andrea Pola.

The liver suffers especially strongly during intoxication, as the ability of enzymes to remove accumulated metabolites is impaired, and oxidative stress is formed.

The digestive tract is the first to react to acute poisoning (pain, nausea, vomiting). As heavy metals are absorbed into the blood, reactions from the heart and blood vessels (pressure surges, shortness of breath), kidneys and liver are connected.

Oxidative stress is a set of cell damage processes due to the oxidation of its components. Oxidation is the result of reactions between active forms of oxygen and polyunsaturated fatty acids of the cell membrane. Free radicals formed attack neighboring molecules and damage them.

— It must be admitted that mercury, salts of heavy metals, and lead are contained in seawater due to oil stains and other products of human life. All this accumulates in seafood. If they are eaten, nausea, stomach pain and headache may appear. The ecology is such that the fish contains an increased amount of lead, which is a blow to the liver and the body in general, the study emphasizes.

According to American researchers, long-lived and food chains that are at the top, predatory fish species accumulate heavy metal salts: marlin, tuna, shark, swordfish, king mackerel, tilefish, pike, perch, catfish, mackerel.

Also on the list are king mackerel, marlin, Atlantic bighead, shark, swordfish, bigeye tuna, as well as fish from the malacanth family.