There are regulations limiting the amount of potassium that can go into supplements because of worries about a condition that results from overdoing potassium. Which is hard to do. However, NoSalt is almost pure potassium. Check out the ingredients. !/8 tablespoon gives a good, readily digestible shot of potassium to your system. Low salt V-8 also has way more potassium than any of the regular electrolyte drinks.
So, Salt sticks plus a pinch of Nosalt will go a long way at very little weight.