Dog Walker
The drinks you've mentioned are all pretty evenly matched when it comes to their energy levels and the way that they deliver them. So the Use It For section is, if you will, simply a serving suggestion. It would have been possible to have had the same 'use it for' almost all of the drinks tested! But while testing them I did find that they lent themselves particularly well to the tasks I suggested them for. The Isostar, as it was pretty sweet, seemed to work well when I had it on my desk and sipped it during the hour or so before a run. Lucozade Sport was also good for this, but it's sharpness was refreshing when bursting for a drink afterwards, whereas the Boots drink seemed to be the lightest of the three and therefore easiest to gulp down while running. I know this isn't very scientific but, as I say in the article, taste is probably one of the most important things with sports drinks. The 'use it for' notes are a suggestion, so don't think you have to buy one of each for each task! If you're happy using them for different tasks, then carry on. Once you've found an energy drink you get on with and benefit from, then my advice would be to stick with it.