[Har]

Can HEED be properly used if small peanut butter sandwiches, fig newtons, maybe an energy bar are eaten while using HEED during rides?

 

[locustfist]

yes.

do what works for you.

on 3+ hr riders you want to get ~300 calories down an hour. HEED is 100, so get the other 200 with what ever you like. Mostly carbs and a bit of protein works for most people.