When it comes to belly-slimming meals, there’s nothing healthier than a nice piece of fish, right?

Not if it’s one of these.

The American Heart Association recommends eating fish that are high in omega-3s twice a week.

Spicy tuna rolls

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But just as not all fat is bad, not all seafood is healthy.

In fact, these options qualify as worse than junk food.

Plus, be sure to consult our list ofEvery Popular FishRanked for Nutritional Benefits!

atlantic salmon

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Swordfish is the runner-up, with .995.

Similarly, you should always paddle away from shark, king mackerel, and orange roughy.

As a general rule, the smaller the fish, the lower its level of contaminants.

tilapia fillet

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(The white rice wrappers will do your belly fat no favors either.)

Check out our list ofThe Best and Worst Sushi Rolls for Weight Loss.

If you want to flatten your belly, avoid them all.

swordfish steak

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You’d be better off eating two McDonalds' Filet-o-Fish.

But really, don’t do that.

spicy tuna rolls

shrimp tempura

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fish and chips

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