Well, to be fair they are talking about sea water, which has an approximate average salinity of 35g/L [1]. Gatorade (reading off the label from the bottle sitti

Well, to be fair they are talking about sea water, which has an approximate average salinity of 35g/L [1]. Gatorade (reading off the label from the bottle sitting on my desk) has 110mg of sodium and 30mg of potassium per 240mL, so about 600mg of 'salt' per liter. There's ~60 times more salt in sea water than Gatorade. We are actually pretty good at maintaining homeostatis. But it's really hard to deal with the amount of salt in sea water. In addition, you and the article are not actually going over the same thing. The stated problem is not during absorption (which you deal with), but what happens after you absorb the salt water. [1] http://en.wikipedia.org/wiki/Seawater http://en.wikipedia.org/wiki/Seawater