There was a good article on Velonews.com this morning, and I love this paragraph:
"The brands offering electrolyte drink mixes might have you thinking that hydration is a precise science. They use long words that you probably don’t understand — at least I have to look most of them up. But in reality, hydration is much more simple. In the real world, what we pour into our bodies revolves around a few things: what are we craving, and what tastes good, or in the case of many electrolyte mixes, what can we stomach. Luckily, there is a growing number of tasty and portable options available. Here is my go-to selection and how I use them."
The article then proceeds to review several products.