Oh, yikes, this is kind of scary. Does that mean three times as much C as NACⁱ each time you take NAC? That would be a large dose of C several times a day. I only take 250 mg. I've been at that dose for ages, because I was advised during some of my early iritis flareups not to take too much, as it would "push" the immuneⁱ system too hard, and I needed to dampen it down to stop the inflammationⁱ. I always take the 250mg tablet along with the morning's NAC.

This is the first I have heard about NAC being anything other than beneficial. I will follow this thread closely, hopefully others have more solid information?

Thanks,

Joy

According to this: http://www.vitamindcouncil.org/newsletter/2006-aug.shtml

...[Another study] found three things in your diet that protect against kidney stones: high potassium (46% lower relative risk), high magnesium (29% lower relative risk), and high fluid intake (29% lower relative risk). For younger men, higher dietary calcium was associated with a reduced risk of kidney stones (31% lower relative risk).

It seems likely that physiological vitamin D intakes will result in a higher relative risk for kidney stones for people on modern American diets (low potassium, low magnesium, high refined carbohydrates, high sodas, and a high acid residue). You may lower your risk of kidney stones by remaining vitamin D deficient, but then you raise your risk of dying from many other diseasesⁱ. The best thing to do to prevent kidney stones is be sure you drink adequate fluids, be sure you have adequate magnesium (see below) and potassium in your diet, and be sure you are not in a state of low-grade metabolic acidosis. The last is important, because foods that contain potassium (vegetables and fruit), also turn your body more basic.