Apologies - somewhere (possily from comments on ayuveda), I picked up that glutamic acid was an EAA, it isn't.
However, a search online does give estimates for a an average daily intake of "several grammes" for an adult though, and that it is the commonest dietary amino-acid. That will be as part of protein molecules in the great majority of cases, but you cannot reinvent very basic biology - glutamic acid/glutamate, no matter how ingested, is absorbed into the bloodstream as glutamic acid.
I also referred to my knowledge previously being only of "Chinese cook's disease" - to me, that is water retention, typically leading to a chubby/puffy face, no more than that.