No... I just don't take things, unless I have a good reason to.

I am pretty conservative, in general. I don't like high doses of things either.

Me either. How do we know who the blazes "Reviewer3340759" is, what their motives are, whether the information is accurate, or... don't get the skeptic in me started. I don't know, but when I see something like this without credible corroboration, I can't help but think of the old joke, "It must be true—I read it on the Internet!"

(A few mouse clicks later...)

As it turns out, there may be some truth in this, but IMO it's not a matter of chemistry—the molecule is the same regardless of the source—but one of lifestyle choice, and I am not a vegetarian. I thought about throwing a straw man into it and ask, "If it's made from human hair, does that make it cannibalistic," but....

Don't know. The directions on my bottle say take one per day unless directed otherwise by a healthcare professional. I would think if it were better taken twice daily that at least one of these mfrs would make smaller dosage capsules. That would behoove them because they could likely charge more for smaller ones as is the practice with most other supplements.

I recall something else that I can't find or remember clearly, but I did find this:
Doc

According to the link I provided from the Vegan source... non-human non animal sourced NAC will cost 2 to 3 times MORE and therefore the product price would be much higher.

Keep in mind people sleep with down products and feather pillows. Those feathers are cleaned before use, but with time break down and particles escape thru the fabric and you breathe them in and they can get in your eyes too. I can't have any feather products in my bed as my eyes swell shut and I can't breathe. No feather linens in our house!

Yes, they're made only from the lips & ******** of angus cattle.

Really folks, if this stuff is making you queazy, never look into where anything you consume or use on your body comes from ever again, or what the FDA allows in anything.

It'll make you plotz.

That was one of the metaphors in Soylent Green—not that what we consume comes from people (that was the extreme—there were other colors/types of Soylent as well), but from things we don't/wouldn't want to know about. (There are other metaphors as well.)

I'd say more, but my pork hotdogs are done...

Doc