Nutritional supplements

Re-posting here, as a stand-alone comment, since I fear it may have gotten lost within the thread, and at least some parts of it bear repeating...
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Yes, sadly, carrageenan and gums are quite pervasive and, what's more, because of FDA and Health Canada regulations, these substances aren't always listed in the ingredients. That is certainly the case with many dairy products (sometimes, these things are incorporated as the carriers for the added vitamins :(), which is why I think it's always important to try different brands and take note of one's reactions before simply concluding that one is "intolerant" to dairy or a certain food.

This goes with added gums, cellulose, carrageenan, peptides, polyester fat substitutes and many other such easily persorbed substances, including the large proportion of them being used in the processing of these foods.

As just a few of many such examples...

"Drugs and nutritional supplements frequently contain microparticulate titanium dioxide (a Group 2 carcinogen according to IARC) and silica [the FDA recognizes the carcinogenicity of crystalline silica, but they 'expect' amorphous silica to be non-carcinogenic :/ ], to make attractive tablets. Those things are sometimes included in encapsulated vitamins and powdered thyroid, to speed filling and reduce static electric charges. Toothpastes frequently contain titanium dioxide for whiteness and opacity, and fumed silica to give it a thicker consistency.

For many people, 'foods' are probably their main source of exposure to industrial particulate matter. The FDA allows up to 1% of the weight of food to be titanium dioxide, and up to 2% fumed silica.

[...]

Besides the material that HAS to be listed on the label, things that are called 'processing aids', which get into the food incidentally to their manufacture, don't have to be mentioned on the label. For example, there are 'food grade lubricants', kosher and halal lubricants, which can include particles of fluorinated hydrocarbons, identical to the material in Teflon, as well as fumed silica. Silica is widely used in spray drying foods to prevent clumping of the powders." (the above excerpt is from Ray's latest newsletter). 
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It's important to keep in mind a few things here.

Namely, that as is the case with all such things (including, say, adding fluoride to our water supplies), the actual mathematical models used to establish safety are heavily flawed and biased towards the manufacturer, and actual vs. theorized exposure never, ever takes into consideration the many outliers and outlying factors (age, health, total exposure via other means, etc.).

There is no "conspiracy theory" per say here. I want this to be CRYSTAL CLEAR, as I am in no way insinuating there is this "BIG FOOD INDUSTRY" dude at the top, orchestrating all of this, hoping to slowly poison the people. Not at all.

But there most definitely is a system rigged in favour (subsidies galore!) of the profit-generating magnates who will go to great lengths to turn industrial waste products into so-called "super foods" (whey powder, fish and seed oils, fluoride, titanium oxide, cellulose, pulp-dissolving enzymes, etc.) or to continually push their safety margins for the purpose of easing their processing and distribution methods.