The idea of menu labeling is to make sure that customers process the calorie information as they are figuring out what to eat.

WSJ: FDA head says menu labeling 'thorny' issue

"The sample test results you provided are well within the variability of the all-natural brewing process and all in full compliance with all alcohol labeling laws, as we noted, " Peter Kraemer, vice president of brewing and supply for Anheuser-Busch, told CNN.

CNN: STORY HIGHLIGHTS