I think that as long as the person is getting enough salt in their daily diet, there is no need to increase salt intake just because of some event...BTW for years and years medical science has been preaching that our daily salt intake should be no more then 2300 mg which is about 1 teaspoon per day. Now they saying they've been wrong and it's ok to increase your salt intake to more then the recommended amount.

CDC: Salt Intake Guidelines Were Wrong; For Most People, No Great Benefit In Dramatically Reducing Dietary Salt