Andrew Huberman· PhD
if you have food stuff with say, a lot of insoluble fiber, typically, insoluble fiber is not really digestible, and so you could have "quite a bit of carbohydrate," know but if you can't extract the energy from it-- and typically, this is because insoluble fiber from plant material, the carbohydrate and even some of the protein is bound up in the plant structure, which makes it inaccessible to digestive enzymes.