Forget checking the expiration date.

Americans have found a new reason to fear the grocery aisle. Stomach-churning videos showing rubbery fruit, stretchy meat, and eerily resilient bread are racking up millions of views, with horrified users attempting to expose what they believe is an increasingly artificial American food supply.

The clips are part of a growing genre of social media food sleuthing, in which everyday groceries are dissected to reveal what they claim is “fake” — or even “poisonous” — food.

But experts say bizarre textures aren’t proof that shoppers are being poisoned, and many of the viral oddities have surprisingly ordinary…

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