email a friend iconprinter friendly iconHigh Performance: Fish Nutrition
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The Bottom Line
If you remember only one thing, Fitzgerald advises, "Eat low on the food chain." Mercury and other harmful toxins enter the food web in the water, where they’re picked up by plankton, then smaller fish, then larger fish, and so on. "Contaminant levels become more concentrated as they’re absorbed up the chain," Fitzgerald says. "The bigger the fish, the more mercury it’s got." So go for anchovies and sardines over toothsome sharks and mighty tuna. Smaller fish tend to reproduce more frequently too, making them naturally more sustainable. Sardines generate a billion eggs, while sharks reproduce at a rate closer to humans. In other words, why cut down a redwood when you can eat a dandelion?
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