[T77911S]

cramping yes, even what you drink can cause stomach issues.
but I go back to what I said about the level or intensity of exercise.

I had issues with what I drank, especially when I first started biking,. I use to water down Gatorade because it was to sweet or strong. then I would even do 2 different bottles of different drinks or how much they were watered down. but, it seems that later in my biking years it really did not matter as much, never really had stomach issues later on.

food, it took a while to figure it out.
waffles, pancakes, or even PB&J worked for me. was reluctant to drink milk but I even found I could drink some, then I might drink a soda too.

eggs and cereal never did it for me. obviously no energy in eggs but with both I would get hungry too fast and bonk.

after work I would 30-50 miles every day. I don't remember eating before those rides unless it was a training ride with a group, but also, getting up in the morning and not eating is different that riding 3 hours after lunch.

intensity of your workout really dictates the need for food.