If you're worried about your DS' exposure why don't you calculate his daily intake from the label on your oat milk? That should help you decide whether you need to cut down.
Have avoided the "thickener" for some time. How it is processed is not clear. Read a confusing explanation which included the phrase "It is safe." This tells me to watch out. Trader Joe's almond milk has it, so I buy Silk in liquid form at my local supermarket. What really annoys me is that MSG may be in it, but the government does not require food corporations to list this ingredient. Not incidentally, one of the guys at Joe's tells me that all those almond milk brands they carry are made by the same corporation.
Thanks for sharing the book title, sounds interesting.
I've also read that it's a problem, whether or not it is I do try to avoid it. I'm pretty sure it's one of the many things that I can't eat because those breakfast shakes and milks that have it in it leave a bad taste in my mouth and aren't nice to my stomach, and that's the only ingredient that should be doing that. I agree with being frustrated when it's in the milk boxes- I actually would like to try hemp milk, but I'm not touching anything with carageenan in it and neither is my kid (at least until he's old enough to make the decision himself)
They put this in ready-to-feed baby formula, which is suggested for preemies/babies with immune problems who need formula because it's sterile. That I consider to be really messed up- because I imagine that when it's in your sole source of nutrition, and in such little (and especially vulnerable) babies, it's very easy to get enough to cause problems. And I have a really hard time believing it's safe when it's banned from infant formulas in Europe. They really need to start holding formula companies more responsible and make sure they produce a product that's actually decent. While I definitely appreciate the emphasis on breastfeeding and don't think that we should cut support for it at all, the fact is that there are babies who are going to be formula fed for numerous reasons, I wish more people were working to make it so that the formula was the best product possible. The companies sure as heck aren't.