As simple as it is, I still can't claim full credit for this recipe. It is a minor modification of another recipe*. I replaced the table sugar (sucrose) with Dextrose. Sucrose is 50% fructose. That's far too much. The human body's ability to process and consume fructose is quite limited. The excess has a tendency to ferment in the digestive tract, causing gas, bloating, and dehydration. Not good. Curiously, Gatorade gets this wrong too. Good electrolyte cocktail but poorly thought out for delivering calories.
*I used to have a link to the original but the site on which the page was hosted no longer exists.