WHAT'S IN McDONALD'S FILET-O-FISH?
McDONALD’S FILET-O-FISH
Updated September 2026
The Filet-O-Fish is a popular item on the McDonald’s menu. Below are a snapshot of the Ingredients and one of the Nutritional Data plus slides detailing some specific ingredients such as Soy, Preservatives and Sugar. (Sources: McDonald’s Website 9/26; U.S. FDA 2026; Amazon Whole Foods Website 9/26)
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