I still have not seen E623 / calcium glutamate on US labels. (That does not mean the ingredient is not there, because of US labelling rules.) Years ago, I used to see MSG (mono sodium glutamate) on labels. Currently, a lot of US foods advertise "No MSG"http://status.hackerposse.com/url/22226 When using foods without "flavor enhancers" added, you will have to add various herbs …