Dunno aboutt he science, but I’ve started taking 2 half full bottles of drink with me on rides, one with water + zero tab and the other with a pretty concentrated (well, about 2x more concentrated than I’d make it for an all day ride) 1:2:1 mix of fructose:maltodextrin:whey + squash. Drink one in the first hour then the other in the 2nd hour, and I get off the bike feeling OK, rather than outright knackered with just a bottle of zero over 2 hours.
Are there any side effects to eating too many carrots? Raw carrot’s the only snack* I seem to find in any way appealing (appart from nuts) during the day, so must be eating 4 on average every day!
*I know idave’s supposed to stop the urge to snack, but I ‘graze’ if it’s not carrots, its harribo, a 200g bar of chocolate and the biscuit tin. Even a 10 egg ommlet for breckie isn’t going to stop me.