Everyone knows that no healthy diet is not complete without fish. This is an excellent source of unsaturated fatty acids omega-3, vitamin D, iodine and protein. But, unfortunately, not all types of fish are useful for the human body.
Read to the end to get the most useful information.
Scientists Sea Fisheries Institute in Gdynia (Poland) in collaboration with other institutions in the course of Studies have found that in sea fish a lot of dioxins and their derivatives, as well as heavy metals, mainly way of mercury.
A small amount of mercury will not hurt an adult, but the element of danger to the fetus or infants. Doctors advise pregnant and nursing women to reduce the consumption of sea fish and seafood. In adults, a high concentration of this element in turn can lead to brain damage and kidney failure.
fish toxicity
Dioxins - a side chemicals resulting from industrial activities. Dioxins accumulate mostly in the fat of fish. In humans they cause cancers, infertility, liver disease and heart.
According to scientists, each fish has mercury and dioxins. Most of the known fish such as pangasius, tilapia, tuna, sea bass, hake, cod, eel and all oily fish (a collective brand name) contain a significant, but not a dangerous amount of these substances. In Sardinia, pollock and salmon them a little less.
What types of fish threaten health?
1. Swordfish
Like a shark, marlin and mackerel, swordfish - a predator. Staying on top of the food chain, all predators accumulate a toxins and harmful substances. The mercury content per 1 kg body weight they have reached 0.9-1.2 mg. The same representatives of river fish are pike and perch.
2. Atlantic tuna
The tuna accumulate methylmercury. This compound is commonly found in seafood. Danger methylmercury that at elevated concentration in the organism are disrupted nervous system. Doctors recommend to abandon the frequent use in food tuna.
3. Salmon
This is one of the most popular and valuable fish. On store shelves gets the salmon grown on farms. Compared with the wild special, its price is much lower. However, scientists and nutritionists recommend him not eat.
Breeding salmon has 15-35% fat, the fish grown in a natural environment, only 5-7%. Fat - it is the substance, which brings together the toxins. In captivity, the fish are fed pellets of fishmeal or extract from soybeans, added hormones, antibiotics and microbicides. Therefore, when analyzing meat detected dioxins and pesticides, in contrast to the wild salmon.
4. shrimps
Shrimp of unknown origin are often the source of the bacteria E. Coli and Staphylococcus aureus. Those that are imported from India or China, according to reports of consumers, contain large amounts of chemicals and antibiotics, the use of which is prohibited in the United States and the European Union. To increase the weight of crustaceans unscrupulous manufacturers often add gelatin.
Shrimp, which are sold in hypermarkets and convenience stores, have been tested and received certificates confirming the safety of their consumption.
5. The most expensive caviar
Beluga caviar is considered the best in the world. Price 100g delicacy can reach several thousand dollars.
Habitat Beluga Caspian Sea. Currently, the fish dies, so the import of eggs is prohibited. However, this did not stop the smugglers. The product is still available on the black market and in shops selling counterfeit goods - artificially colored eggs, otherwise known as sea hare. In addition, it is possible to become a part of deception, the quality of the product is questionable.
Important to remember!
In spite of the above, a healthy diet includes fish and seafood. Their nutritional value is irreplaceable. The recommended frequency of fish consumption is not more than twice a week. Watch out for the health and live a long time!
Support click advertising, Like and subscribe, leave your comment.
12 species of fish that are dangerous to eat
Cheap and useful for fish health
8 Seafood, who buy most often
