stangmx13
not Stan
Isotonic solutions and measurements of osmolality started appearing in marketing for exercise drinks I'd guess around 10yrs ago. I've yet to read anything with real evidence that any of it matters. It's likely that any issues with consuming high osmolality drinks are worth it for the race results and/or can be trained away. On top of that, a lumped-together measurement of osmolality is kinda junk. Different molecules digest differently in the gut and produce different results. And it's likely that every person will feel differently from digesting different molecules.
In race-type cycling, it's always possible to expend more calories that you can consume and metabolize. So the more you CAN eat, the faster you likely can go. We don't have access to infinite bottles nor have infinite stomach space. So consuming isotonic solutions leaves calories on the table, leaves performance on the table. Skratch sells a mix called Superfuel. You put 7 scoops into 16-20oz for 400Cal. They claim it digests slower, more like regular food, and produces less gastric distress. Hows that for osmolality . Lately I've been doing 1 scoop of regular Skratch and 2-3 of Superfuel for 200-250Cal, and consume it in 90min or so. But that's me. I'm sure there are plenty of avg cyclists that would get a massive stomach ache from consuming one of my bottles.
Oh, and of course running treats the stomach quite a bit different than cycling.
In race-type cycling, it's always possible to expend more calories that you can consume and metabolize. So the more you CAN eat, the faster you likely can go. We don't have access to infinite bottles nor have infinite stomach space. So consuming isotonic solutions leaves calories on the table, leaves performance on the table. Skratch sells a mix called Superfuel. You put 7 scoops into 16-20oz for 400Cal. They claim it digests slower, more like regular food, and produces less gastric distress. Hows that for osmolality . Lately I've been doing 1 scoop of regular Skratch and 2-3 of Superfuel for 200-250Cal, and consume it in 90min or so. But that's me. I'm sure there are plenty of avg cyclists that would get a massive stomach ache from consuming one of my bottles.
Oh, and of course running treats the stomach quite a bit different than cycling.