the Rebuild has been good. It’s not caused me any major gut issues after a hard workout. I have had such things happen with too much sugar. I will often mix it with chocolate Ripple (pea milk) rather than with water.
Using sodium citrate in place of table salt allows your gut to tolerate more sodium consumption during training. Sodium citrate has 3 sodium molecules for every 1 citrate molecule. Sodium chloride has 1 sodium molecule for every 1 chloride molecule. That means that for the same amount of sodium consumption, there will be a greater number of molecules ingested, if using table salt, rather than sodium citrate. Osmolarity is the number of molecules per unit volume of solution. Our gastrointestinal tracts are sensitive to very high osmolarity solutions. During normal daily living, consumption of very high osmolar solutions (lots of molecules per liter) causes a laxative effect 20-60 minutes after consumption. During exercise, it causes gut cramping, THEN a laxative effect. My personal experience with this can be described as “not fun!”
Thanks for the detailed answer. I had forgotten that it’s actually trisodium citrate. Do you know if the citrate has any buffering effect (like the bicarbonate lotions are alleged to have) and if that has any beneficial or detrimental effect on performance? Or if it’s helpful as additional substrate for the krebs cycle? My guess would be it doesn’t as carbohydrate availability through absorption appears pretty clearly to be rate-limiting for aerobic energy production
The amount of citrate ingested is so tiny by comparison to carbs that substrate-based changes are guaranteed negligible.
Re: buffering… haven’t looked into it. But in most cases, buffering enhancement doesn’t improve purely long-endurance performance because acid-base balance isn’t the bottleneck for such performance.
Basically, when high sodium is needed (long stuff), bicarb based buffering wouldn’t help anyway.
Hey thanks for that, it’s super helpful and the idea of less gatorade powder (with the intense artificial color) and a lot more sugar sounds good to me.
Can I ask a followup? How does osmolarity fit into all of this? Is it pretty much not an issue if you drink enough water along with your high carb sucrose fuel? Thanks!
Ive always loved Cosmo and skratch, but I gotta say I was told about nutralbio and their super carb drink. The sweet tea is by far the best drink ive ever had.
I must admit its so good, I feel guilty cause I think I’m drinking legit sweet tea!!
Its also got the same type of carb has skratch’s new super fueling drink
Anything good on Amazon or that I can get quick? I used to use Gatorade powder in one bottle and water in the other but the powder just ran out. Also probably not the most “high tech” thing for cycling. I do have some SiS tabs but they’re fizzy so the first time I open the bottle to take a drink it sprays sticky mess all over time/bike from the pressure
How does that work? Same amount of carbs, less calories? Pretty sure basically all calories in these drinks are from sugars/carbs.
Also even if it does somehow work, how is that a good thing? Most people use these drinks to get carbs/energie, the more, the better. If you only want the hydration, use pure electrolyte tabs/powder.