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LD50 for a human of 70kg is 210g (3g salt per kg of human), so it seems rather unlikely that it will be lethal short-term (though always possible). It mostly becomes lethal when you don’t have any water that’s actually hydrating.

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stray@pawb.social ⁨1⁩ ⁨week⁩ ago
I think you may be thinking of the LD50 for rats. People have died from much less than 3g/kg.

The lethal dose was estimated to be less than 10 g of sodium (<5 teaspoons of salt) in two children, and less than 25 g sodium in four adults (<4 tablespoons of salt).

pmc.ncbi.nlm.nih.gov/articles/PMC5537768/

An acute toxicity from excess sodium intake with the possibility of fatal outcome has been reported in relation to the ingestion of huge amounts of sodium, such as 0.5–1 g of salt/kg body weight.

pmc.ncbi.nlm.nih.gov/articles/PMC3951800/

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