10 Hidden Allergens in Everyday Packaged Foods (And How to Spot Them Instantly)

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Most people read ingredient lists looking for calories or carbs. But the real danger hides in plain sight — in names you can’t pronounce and additives buried at the end of the list. Here’s what to look for.

Packaged food labels are legally required to list every ingredient — but nothing requires them to make it easy to understand. Allergens can appear under dozens of alternative names. Here are the 10 most commonly missed.

1. Casein and Whey — Hidden Dairy Proteins

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2. Sodium Benzoate — The Preservative Linked to Hyperactivity

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3. High Fructose Corn Syrup — The Sugar Trap

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4. Carrageenan — The Gut Irritant

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