Why is swordfish high in mercury?

Chef's answer
However, larger fish that have lived longer have the highest levels of methylmercury because they've had more time to accumulate it. These large fish (swordfish, shark, king mackerel and tilefish) pose the greatest risk. Other types of fish and shellfish may be eaten in the amounts recommended by FDA and EPA.
Frequently asked Questions 🎓
1. Mel's Country Cafe in Texas sells the Mega Mel Burger with 1.5 pounds of ground beef, a pound of bacon, 1/4 pound of American cheese, lettuce, tomatoes, pickle and bun. It weighs in at an estimated 4,556 calories..
Body temperature normally fluctuates over the day following circadian rhythms, with the lowest levels around 4 a.m. and the highest in the late afternoon, between 4:00 and 6:00 p.m. (assuming the person sleeps at night and stays awake during the day)..
Prime is the highest quality of beef available. They have the most marbling and are sure to provide a wonderfully juicy and extremely tasty eating experience. The high level of marbling makes them great for grilling and other dry cooking methods. Choice is still high quality beef that has less marbling than Prime..
Here are the five major Pacific salmon varieties, listed in order of richness:
  • King (chinook). The lushest fresh salmon, king is the highest in fat and usually the most expensive, prized for its silken, melting texture, which is almost like smoked salmon.
  • Sockeye (red). ...
  • Coho (silver). ...
  • Pink (humpback). ...
  • Chum (dog).
King mackerel, marlin, orange roughy, shark, swordfish, tilefish, ahi tuna, and bigeye tuna all contain high levels of mercury. Women who are pregnant or nursing or who plan to become pregnant within a year should avoid eating these fish. So should children younger than six. Ease up on tuna.
Good omega-3-rich fish options include:
  • Salmon.
  • Sardine.
  • Atlantic mackerel.
  • Cod.
  • Herring.
  • Lake trout.
  • Canned, light tuna.
.
King mackerel, marlin, orange roughy, shark, swordfish, tilefish, ahi tuna, and bigeye tuna all contain high levels of mercury. Women who are pregnant or nursing or who plan to become pregnant within a year should avoid eating these fish. So should children younger than six. Ease up on tuna.
A few more cooking questions 📍