Hyponatremia.

Hypo-, meaning low; -natr- derived from natrium, Latin for sodium; -emia, meaning presence in blood.

Low sodium presence in blood.

How u know

Would that prevent hyperhydration, or would you need it to have more than just salt? 🤔

lol no. It says "a day". It says nothing about when exercising or sweating your ass off outside when you might need to actually care about adding salt.

I drink about a gallon a day of water and my normal diet replenishes things just fine. Your kidneys shouldn't be dumping a bunch of stuff out that you're already low on. They're not mindless filters that run at a constant rate.