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Harvard Health Blog
Make smart seafood choices to minimize mercury intake
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With the popularity of Omega 3 supplements, one also has to make wise choices regarding the brand of supplement they choose.
Be aware of the source of the Omega 3 (referencing the low-mercury options presented in this article) and the extent of the testing procedures prior to bottling of the product.
hi this is too nice explanation. all the seafood like some fish are not healthy either for brain or body.
I did a lot of research and reviewed many products on how to get the omegas from fish without the mercury intake. I found that krill oil is the new hot product. It’s supposedly has a lot less or no mercury and even is more potent than fish oil. I’ve been taking it for about a month and so far so good!
I found an omega 3 product that had a ifamiliar sweet odor to it, Eventually, I was able to recognize the odor and it was coconut. I had my pharmacist call the company and they admitted it was in the omega-3 pill. I asked why this was not on the label. The reply was, “it was labeled correctly and was in the section that stated…….and other ingredients.”
Coconut oil is NOT GOOD for the heart yet it is in a product sold for heart health but not visible on the label. I purchased 2 bottles with the same control numbers but opened only one. I am sending them to FDA. Maybe they will make all products with this oil to be labeled more obviously.
Fish has always been viewed as a healthier option where meat is concerned (along with chicken); however this article tells a different story. This is something not many people would take into consideration when choosing a diet of fish as the main protein. Although fish contains the omega-3 fatty acids needed in the body, the mercury levels are most likely to cause damage in the parts of the body originally helped by the fatty acids. A healthy consumption of fish would be an appropriate size, twice a week; however also fish low in mercury levels. This article is very helpful in that not many people know or understand this about this source of protein.
I agree, to reduce the intake of mercury in the body. Form methylmercury is a very dangerous can cause cancer. thank you, for sharing interesting information.
i liked it so much that you described normal/required mercury ratio for different people at different stages specially what you specified about expecting women.. thank you Julie. keep sharing 🙂
According to U.S Geological Survey study the concentration of mercury in fish found in United States’ streams exceeds the norm. Low concentration of mercury may not harm yet numbers of statistics are too worrying. Mercury can harm unborn baby and affect young child’s nervous system. For adults too mercury can bring to serious problems like fertility, memory and vision problems, trouble with blood pressure; mercury can damage central nervous system and become a reason of psychological, neurological and immunological problems.
To some of the other commenters: fish oil capsules (including cod liver) should be purified of mercury as well as other common contaminants. The label should indicate whether they’ve done this. To check the reputation of particular brands, Consumer Labs is a good source. It’s a subscription service though. Also, smoked salmon shouldn’t have an appreciably different quantity of mercury than fresh or frozen. In terms of farmed vs. wild, the mercury content of farmed will vary depending on where the fish are raised, but in probably every way wild fish is generally healthier to consume (whether or not sustainable in marine ecosystem ways.)
How do the guidelines vary as between wild-caught Atlantic vs. Pacific salmon, wild Alaska vs. other wild Pacific salmon? Lox or smoked wild salmon vs. fresh or farm-raised?
What about cod liver capsules? Do they have mercury?
Ialso want to know if cod liver fish oil is save.Where do we get the best and for people like us who like fish alot which fish is best and where do we get them in Malaysia
What about cod liver oil capsules? do they have mercury?
Being a fish fan, I found this to be really helpful. The tough thing, is measuring portion sizes, particularly if you’re at a restaurant, so it’s a little hard to gauge just how much you’re getting. Thoughts on how to manage mercury levels?
What about clams in the half-shell, like Bluepoints?
Bluepoints are oysters, but, being stationary filter feeders, they would be subject to the chemical analysis of their beds.
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