- 1 Extra Information About is ono high in mercury That You May Find Interested
- 2 Frequently Asked Questions About is ono high in mercury
- 2.1 Which fish contains the most mercury?
- 2.2 Does tuna in cans contain a lot of mercury?
- 2.3 Which fish in cans contains the least mercury?
- 2.4 Is mercury content high in Alaskan cod?
- 2.5 Which fish contains the most mercury?
- 2.6 Which canned tuna has the least mercury in it?
- 2.7 Which canned tuna is mercury-free?
- 2.8 What fish is best to eat that doesn’t contain mercury?
- 2.9 What cod contains little mercury?
- 2.10 Should I steer clear of fish because of mercury?
- 2.11 What removes the mercury from fish?
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alth Alert: Should You Be Worried About Mercury in Fish?
Medically reviewed in July 2022
We’ve all heard the warnings—seafood favorites like ahi and ono may be a healthy source of protein and omega-3 fatty acids, but they also contain a hidden danger: mercury. It’s hard to imagine anything potentially harmful could be in your regular poke bowl, but certain types of fish are high in mercury and other dangerous chemicals that consumers should be aware of. We sat down with Diana Felton, MD, State Toxicologist in Pearl City, to learn more about the risks.
The bigger the fish, the greater the risk
Mercury is a naturally occurring element that gets into the world’s waterways through both natural and man-made sources. “It starts out as metallic, or what we call inorganic mercury,” explained Dr. Felton. “Then it gets converted to methylmercury, or what we call organic mercury, by the sediments in the water, by the fish’s chemistry.” This conversion happens when bacteria and microorganisms react with inorganic mercury. That means the kind of mercury in fish isn’t the same kind of mercury as what you would find in an old-school thermometer.
Mercury can enter fish when they eat algae and other organisms that contain methylmercury. It accumulates in a fish’s body over time, but not all fish have a significant amount. As bigger fish eat smaller fish, the larger fish accumulate more mercury. “It’s the fish at the top of the food chain that are the ones that are going to have the most mercury,” warned Felton. Swordfish, kajiki and shark, for example, all tend to have higher levels.
Who should worry?
For the average fish consumer in Hawaii, the mercury levels in seafood do not pose a significant threat. The people who do need to be very aware of mercury levels in seafood are women who are pregnant, may become pregnant or are breastfeeding, as well as children under age 10. The EPA goes so far as to say that any women of childbearing age (about 16-49) should avoid high mercury fish as mercury will accumulate in your bloodstream over time and leaves the body slowly. It could take a full year for mercury levels to drop in your body from a period of eating a lot of high mercury fish.
“We have pretty good evidence that methylmercury is bad for the developing brain,” said Felton. Because of that, Felton suggests eating smaller fish that are usually lower in mercury.
Pregnant women shouldn’t forgo all seafood though. “It’s about the balance. We know fish is good for pregnant women, the omega-3s are good for the developing brain, but the mercury is dangerous. The best thing to do in this case is to eat fish lower in mercury,” explained Felton.
To help local women understand what types of seafood are best to eat during pregnancy or while breastfeeding, the DOH created a brochure that explains healthy seafood consumption. Cooking does not remove mercury, meaning these guidelines aren’t just for raw fish. One great tip is to eat fish that are small enough to fit into a frying pan whole, as smaller fish tend to be lower in mercury.
More than mercury: other seafood contaminants
While mercury in fish can be alarming, Felton warned that it isn’t the only contaminant found in seafood. Polychlorinated biphenyls (PCBs) also pose a threat. PCBs are man-made organic chemicals that were produced for industrial and commercial use in the mid 20th century. They are considered to be a potential carcinogen and may have other potential negative impacts on your health. Pregnant women should also avoid high PCB exposure as it may lead to decreased birth weight and gestational age.
“Not only do they stick around in the environment for a really long time and take a long time to break down, but they stick to organic particles. They stick to sediment and soil and they also bioaccumulate in fish,” said Felton. Larger predator fish will not only have higher levels of methylmercury, but they’ll also have more PCBs.
Thankfully, fish with high levels of PCBs in Hawaii tend to group in relatively small areas. For example, Felton mentioned a small area in Kaneohe Bay near the Marine Corps Base Hawaii on Oahu where high levels of PCBs had been found. When that happened, the Department of Health, along with MCBH, issued a warning to local fishermen and instituted a catch-and-release program in that area to help ensure people did not consume contaminated fish. The DOH will issue warnings to fishermen whenever high levels of PCBs are found in the soil or fish around the islands.
The DOH can’t check every fishing spot, so if you’re concerned about PCBs getting into your locally caught seafood, Felton recommended eating only certain parts of the fish: “If you remove the organs and the fat, you remove a large percentage of the PCBs in the fish.”
Be seafood smart
Fish and other seafood have been a vital resource to Hawaii since the first Polynesian voyagers settled here. They’re still a healthy and often cost-effective part of a local diet, particularly for those who catch their own. Varying the type of fish you eat and selecting smaller fish are good ideas for limiting mercury and PCB exposure.
For adults who aren’t pregnant, planning to be pregnant, or breastfeeding, Felton recommends sticking to the USDA’s Dietary Guidelines for Americans 2015-2020 suggestion to consume seafood about two to three times, or 8 to 12 ounces, a week.
Extra Information About is ono high in mercury That You May Find Interested
If the information we provide above is not enough, you may find more below here.
Hawaii Health Alert: Should You Be Worried About Mercury in …
Is Ono high in mercury? – Foodly
What Is Ono Fish – Anchors Up Carolina
Is Wahoo High In Mercury? – Sweetish Hill
Wahoo (Ono) – Hawaii-Seafood.org
Frequently Asked Questions About is ono high in mercury
If you have questions that need to be answered about the topic is ono high in mercury, then this section may help you solve it.
Which fish contains the most mercury?
These include shark, swordfish, fresh tuna, marlin, king mackerel, tilefish from the Gulf of Mexico, and northern pike (5). Larger fish tend to eat many smaller fish, which contain small amounts of mercury.
Does tuna in cans contain a lot of mercury?
b>Some of the canned albacore/white tuna tested had mercury levels almost four times the average level reported by the Food and Drug Administration./b> A study by the Mercury Policy Project found a wide range of mercury levels in both light and white tuna from government-sponsored school lunch programs.
Which fish in cans contains the least mercury?
Shrimp, salmon, pollock, canned light tuna, and catfish are five of the most popular fish that are low in mercury, while albacore (white) tuna, another popular fish, has more mercury than canned light tuna.
Is mercury content high in Alaskan cod?
Cod, sardines, and herring are other fish that contain very little mercury and should be safe for pregnant women to consume between 8 and 12 ounces of cod per week.
Which fish contains the most mercury?
The concentrations of mercury are higher in long-lived, top-of-the-food-chain fish species like marlin, tuna, shark, swordfish, king mackerel, and tilefish.
Which canned tuna has the least mercury in it?
You can eat skipjack and canned light tuna along with other low-mercury species, such as cod, crab, salmon, and scallops, as part of the recommended 2?3 servings of fish per week (10).
Which canned tuna is mercury-free?
According to the FDA and EPA, canned light tuna is preferable and has less mercury than canned white and yellowfin tuna, which are still safe to eat. Bigeye tuna should be completely avoided, but that species isn’t used for canned tuna anyway.
What fish is best to eat that doesn’t contain mercury?
Children should only be fed fish from the “Best Choices” list, which includes fish such as anchovies, catfish, clams, crab, crawfish, flounder, haddock, mullet, oysters, plaice, pollock, salmon, and Atlantic mackerel, according to the Dietary Guidelines for Americans.
What cod contains little mercury?
The best option is Atlantic cod, which is slightly higher in mercury (a 6-ounce serving has 34% of the daily recommendation), but you can still include it in your seafood repertoire.
Should I steer clear of fish because of mercury?
The risk of mercury from eating fish and shellfish is generally not a health concern, but some fish and shellfish contain higher levels of mercury that may harm an unborn baby or young child’s developing nervous system. However, almost all fish and shellfish contain traces of mercury.
What removes the mercury from fish?
A number of studies have also revealed that selenium, an essential element found in significant quantities in ocean fish, sequesters mercury, reducing its toxicity.