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In my longer runs I’ll consume a gel at the first hour mark and then ever 30 minutes. This can be for up to 4 to 5 hours. Gels allow me to consume a controlled amount of carbs without consuming too many calories. I’m not sure about cycling, but in ultra running gi issues are one of the main reasons for dnf’s. The funny part is on runs longer than 6 hours, I supplement gels with mashed potatoe burritos.

Watermelon is a common trick for dealing with sugar-centric fuel causing gastro problems in ultras. I wonder if it would be effective here.

Perhaps cooling and heating them back up might help? Diet resistant starch appears to be worthy of exploration.

https://www.healthline.com/nutrition/cooling-resistant-starc...

That would reduce the availability of carbs and make the GI issues even worse.

Fair enough. But it's appealing in a non-workout situation.