To what extent should you worry about mercury in fish?

In recent times there has been much talk about the amount of mercury in fish, and how toxic it could be for health, especially for young children and pregnant or nursing women.

It is true that some fish contain heavy metals, but how much do you have to eat to make it truly a danger? Read on to find out.

To what extent should mercury concern you with fish?

Mercury is a heavy metal found in nature and can be transferred to the environment through industrial pollution ; thus, it falls from the air and is deposited in water currents-rivers, oceans-, becoming methyl mercury in the water.In the rivers where gold mining is done mercury is used, which serves to separate the gold of the rest of the materials; mercury is usually burned and evaporates when it precipitates into the waters, contaminating them .

When fish and shellfish eat in these polluted waters, mercury accumulates in their bodies, at throughout his life.The effects of this metal on the nervous system have indicated a possible relationship with autism , although there is nothing conclusive.

So what to do ? In the opinion of the US Food and Drug Administration ( FDA , for its acronym in English), the most advisable for pregnant women and young children is to eat two portions of 170 gr per week .And low-mercury fish.

Because there are some species that absorb more than others the liquid metal: the larger fish , like shark, tuna, swordfish or mackerel, or freshwater catfish, are the ones that most accumulate mercury .On the other hand, salmon, cod, shrimp or canned tuna have levels lower.

To what extent should you worry about mercury in fish?

On the other hand, your genes can help you when there is mercury in fish.Geneticists think that there are people who can expel it from your body more efficiently than others, such as bodybuilders or high-performance athletes, who can eat all the tuna they want without worrying.

The effect of mercury in fish accumulates in the bloodstream of those who eat these species, and can cause behavioral, learning or memory problems.

But since we do not usually get genetic tests, it is best to have moderation with the consumption of these fish, or avoid them if possible, especially pregnant women and children.very young children; As for the other types of fish and shellfish, those with low levels of mercury, a good option is to eat them twice a week.

To what extent should you worry about mercury in fish?

If you like fish very much and your diet includes it in abundance , keep your balance by eating a little less the following week, and so you will not be affected.Eat well, exercise, have a drink once in a while and enjoy life while reading this information about the slow movement…

Images: James Burger, Kirk McMurray, Samantha Celera

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