You can't outrun your fork (Of course some smart guy will bring up Olympic level athletes, but we're not freaking talking about Olympic level athletes are we?
A 5K run for 30m burns ~300-600 calories. A single serving of a candy bar is ~250 calories. You NEED to restrict the CI portion since its the easiest part of the equation to control.
The typical person who is maligning CICO because it doesn't explain why they're still fat, that person would do much better by better focusing on CICO and performing the all time best exercise for weight loss - the "table push away"
Meanwhile the typical strict advocate of CICO as the end all be all also needs to understand that there's a lot of nuance in both the CI and CO variables.
A 5K run for 30m burns ~300-600 calories. A single serving of a candy bar is ~250 calories. You NEED to restrict the CI portion since its the easiest part of the equation to control.