Eating kidney beans that weren’t cooked long enough can make a child very sick—vomiting, passing out, and having very low blood pressure and kidney problems—because of a natural poison in the beans.

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Evidence from Studies

Supporting (1)

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Severe red kidney beans toxicity in an 8-year-old girl: a rare case of hypovolemic shock and prerenal acute kidney injury

Case Report

Human

2026 Feb 19

Contradicting (0)

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No contradicting evidence found

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According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Severe red kidney beans toxicity in an 8-year-old girl: a rare case of hypovolemic shock and prerenal acute kidney injury

Score: 24

DOI: 10.1186/s12245-026-01141-0

Similar Assertions

If a kid gets sick with vomiting and diarrhea right after eating beans, and no one else got as sick, and they don’t have a fever, it might be from the beans—not a virus.

87%

Uncooked legume lectins, particularly phytohemagglutinin in red kidney beans, induce severe gastrointestinal toxicity and systemic inflammation in humans at low doses.

78%