correlational
Analysis v1
Strong Support
Some table salts you can buy might have tiny amounts of harmful metals like lead or arsenic because of where the salt comes from in the ground.
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0
Evidence from Studies
Supporting (1)
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Community contributions welcome
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Toxic metal contamination in edible salts and its attributed human health risks: a systematic review and meta-analysis
Systematic Review With Meta-Analysis
2025 FebThe study found that some salts, especially rock salt, contain higher levels of heavy metals like lead and arsenic, which supports the idea that the source of the salt can affect how much pollution it has.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
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.