ELI5: If drinking salt water further dehydrates the body, why is saline used to treated dehydration? Submitted by Dartualexmachina t3_10pxwaz on January 31, 2023 at 12:34 PM in explainlikeimfive 21 comments 59
Vogel-Kerl t1_j6mp5ga wrote on January 31, 2023 at 12:44 PM Normal saline is 0.9% sodium chloride. That's 9 grams of NaCl in one liter of water. This is isotonic to your blood. Sea water has ~35 grams per liter, almost 4 times as much. Permalink 84
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