There isn't one single "dirtiest" fish, but imported catfish (Basa/Swai) is frequently cited due to potential antibiotic use, Vibrio bacteria, and poor farming conditions; while large predatory fish like shark, swordfish, and king mackerel are high in mercury; and farmed salmon can contain PCBs and contaminants from their feed. The term "dirty" often refers to contaminants, poor farming, or high mercury levels, with bottom feeders (like carp) also noted for PCBs.
Atlantic flatfish (Atlantic halibut, flounder and sole)
Due to historical overfishing and high contamination levels, these flatfish species have secured their slot on the list of fish you should never eat.
Once dubbed the world's ugliest animal for its soft, lumpy appearance, the blobfish has made a stunning comeback: it was crowned this week as Fish of the Year by a New Zealand environmental group.
The unhealthiest fish to eat are typically large, predatory species high in mercury like shark, swordfish, king mackerel, and imported tilefish, plus bluefin tuna, which are dangerous for brain/nerve health, especially for pregnant women and children; also, farmed salmon and some imported tilapia/catfish raise concerns for contaminants and antibiotics, while orange roughy and Atlantic cod are often cited for high mercury and overfishing/sustainability issues.
King Mackerel, Shark, Swordfish and Tilefish are fish deemed unsafe for human consumption by the EPA and USDA due to their high levels of mercury.
The Dietary Guidelines for Americans states that to consume those higher amounts, children should only be fed fish from the “Best Choices” list that are even lower in mercury – these fish are anchovies, Atlantic mackerel, catfish, clams, crab, crawfish, flounder, haddock, mullet, oysters, plaice, pollock, salmon, ...
as unclean (Leviticus 11:27). He tells us that salt and freshwater fish with fins and scales may be eaten (Leviticus 11:9–12), but water creatures without those characteristics (catfish, lobsters, crabs, shrimp, mussels, clams, oysters, squid, octopi, etc.) should not be eaten.
as unclean (verse 27). He tells us that salt- and freshwater fish with fins and scales may be eaten (verses 9-12), but water creatures without those characteristics (catfish, lobsters, oysters, shrimp, crabs, clams, mussels, squid, frogs, octopi, etc.) should not be eaten.
Summary. Tilapia is higher in protein, fat, vitamin D, and selenium. Whiting fish contains 27mg more cholesterol, vitamin A, and fewer calories. Tilapia is 76mg lower in sodium.
These non-game fish are the ugly, sucker-mouthed, snaggle-toothed, mottled menagerie of undesirables which includes suckers, gar, bowfin, snakehead, carp, buffalo, freshwater drum, and many others.
By Simone Paget April 9, 2025 1:15 pm EST. Rez-art/Getty Images. Often touted as bland, basic, and a bottom-feeder "garbage fish," tilapia is anything but. To get his tips for cooking with this mild-flavored tropical white fish, Food Republic spoke to Kyle Taylor, chef and founder of HE COOKS®.
The blobfish inhabits the deep waters off New Zealand and Australia, residing at depths of 600 to 1,200 meters. Its gelatinous body lacks a full skeleton, muscles, and scales, adaptations that allow it to float just above the seafloor.
The #1 rarest fish is often considered the Devil's Hole Pupfish (Cyprinodon diabolis) due to its incredibly small habitat in a single Nevada cavern, though some sources cite the Red Handfish as rarer, with only around 100 individuals left in Tasmania; both face critical endangerment, but the Pupfish lives in the smallest known home for any vertebrate.
Well, the most dangerous in terms of toxins include:
That doesn't mean that certain options don't stand out, especially when it comes to the cleanest fish to eat. Salmon, oysters, halibut, and similar options all stand out with this. If you want some great-tasting fish, they're more than worth trying.
Early studies reported high levels of PCBs and other contaminants in farmed salmon – higher than in some species of wild salmon, such as pink salmon. Follow-up studies haven't confirmed this and the consensus among scientists and regulators is that farmed salmon and wild salmon are safe foods.
According to the U.S. Food and Drug Administration, these include:
The unhealthiest fish to eat are typically large, predatory species high in mercury like shark, swordfish, king mackerel, and imported tilefish, plus bluefin tuna, which are dangerous for brain/nerve health, especially for pregnant women and children; also, farmed salmon and some imported tilapia/catfish raise concerns for contaminants and antibiotics, while orange roughy and Atlantic cod are often cited for high mercury and overfishing/sustainability issues.
Yes, canned sardines are very healthy, offering a nutritional powerhouse of protein, omega-3 fatty acids, calcium, Vitamin D, Vitamin B12, and essential minerals like iron and selenium. They are low in mercury and calories, making them a nutrient-dense, heart-healthy choice that supports bone, brain, and immune system health, though it's wise to check for added salt and microplastics, notes a Reddit discussion on nutrition.
Tilapia is sometimes called St. Peter's fish because it was the likely preferred catch in the Levant at the time of Jesus. The tilapia itself has a couple variants in Galilee. The red belly tilapia is also common tilapia.
as unclean (Leviticus 11:27). He tells us that salt and freshwater fish with fins and scales may be eaten (Leviticus 11:9-12), but water creatures without those characteristics (catfish, lobsters, crabs, shrimp, mussels, clams, oysters, squid, octopi, etc.)
The biggest unforgivable sin varies by faith, but in Christianity, it's often seen as blasphemy against the Holy Spirit, a persistent rejection of God's grace, while in Islam, the gravest unforgivable sin is shirk, or associating partners with God, if not repented. Pride is also considered a foundational, serious sin across many faiths, linked to the downfall of figures like Satan.
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Cleaner wrasses: The cleaner fish of the sea. A pair of Hawaiian cleaner wrasse at their cleaning station, attending to orange surgeonfish clients while a yellow tang waits its turn.
1. Milk and dairy products: Drinking milk after eating seafood can reduce calcium absorption, leading to digestive issues and the growth of harmful bacteria. 2. Fruits: Combining seafood with acidic fruits like watermelon, oranges, lemons, etc., can cause bloating, indigestion, and stomach discomfort.