MSG, the food additive, is often/sometimes made by processing wheat protein. When it is, it is a problem for those who need to be gluten-free.
In infant formula, the process of hydrolyzing the cow milk proteins creates MSG/glutamates. It is not an additive.
Since the special formulas are most extensively hydrolyzed, I wondered if they had more MSG/glutamates. It appears that yes, they do.
The link between gluten vs MSG and the link between MSG and infant formula is that MSG/glutamates are inherently formed in the hydrolyzation process.
There is no direct link between gluten and infant formula, so I don't think it has much, if any, role in our debate. I questioned this in the other thread, because I think bringing up the gluten/MSG connection is confusing. Now I know that it is irrelevant.
Could science find a different process to break down proteins without forming MSG/glutamates/glutamic acid? That's a good question. Of course, the question then becomes, what chemicals would be formed and are they worse than MSG?