Found in many Thorne Research supplements.
I ask because they seem to be a good company otherwise.
I've heard some people say it's dangerous to the gut lining, others say it's not a big deal.
From Thorne's website:
Also known as silica, is a naturally-occurring compound...
The other day I checked the label on the salt which we use at the restaurant I work in and discovered it contained sodium aluminosilicate, an anti-caking agent.I scoured the web searching for other unexpected routes of exposure and must now conclude that virtually every processed food available...