Ok not really scientific – but in the last four days done the same hilly 60m road ride down to Goodwood in different directions. Had one bottle of water with me on the bike a banana and two SIS gels. Stopped once on first ride and three times today due to the heat for refreshment.
Experimented with skimmed milk during the ride for a change. Tasted great but not sure of the energy effect if any. A litre disappeared today at mile 40 in a few seconds. But a few miles later and legs were shot on any hills – a real bonk! Hmmm….
Struggled on but dropped down to spinning low gears and a very gently pace. Very big hill at mile 59 so a bit concerned. Stopped off at a Tesco express (mile 55) and downed a lucozade pink (normally avoid like the plague) and some volvic. Bingo….legs back and final hill was nae bother.
The power of lucozade, I wonder?