How much sodium is in a McDonald's fish sandwich with tartar sauce?
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4 min read
According to McDonald's official nutrition information, a single Filet-O-Fish sandwich with tartar sauce contains 580 milligrams of sodium, which represents 25% of the recommended Daily Value for sodium. This may seem surprising for a single fast-food item, but it's important to understand where the sodium comes from and how it fits into your overall diet.
