The Elixir Tablets by CamelBak turns water into a refreshing drink that provides electrolytes, vitamins and minerals your body thirsts for during exercise. Only ten calories per serving. Use 1 tablet for every 24 oz of water.
FEATURES of the CamelBak Elixir 12 Tablet Tube Pack
Electrolytes, vitamins and minerals to sustain performance
Uniquely designed for use in CamelBak hydration systems
12 effervescent tablets per tube
Sugar-free formulation leaves no residue for easy cleaning
These tablets are pretty nice... If you ever filter some less-than-ideal water these hide the flavor of purifying drops up nicely. They also don't leave the stickiness you usually have to deal with when using sports drink mixes.
Found this stuff when I was trying to look for an enery drink substitute on the trail. The orange alert variety is a great tasting alternative when out and about, wouldn't take a whole container backpacking though...maybe a few. They are pretty heavy, probably as heavy as the average swiss army knife (tinker/hiker). Great in cold water (fresh creek)...less great in warm water. I find it's enough flavor to kill bad tasting water. I personally made sure to include a bottle in my emergency 72 hour kit and bug out bag. Great for emergency preparedness.
I have used about 10 packs of this in my nalagen and when i go to put water in it with no tablets I can't even tell if there has been a flavored drink in their. Where as before I used to put gatorade in their and it ruined my old nalagen cause i can still taste it when i drink plain water.