>>/78970/ No I'm not a Dr or an MD but Dr. Robert F. Cathcart M.D and Dr. Klenner, MD are and used high dose vitamin C successfully. Some of their results are described in the first link in the OP links in your post are to scientific studies showing a high intake of vitamin C supplements can increase risk of kidney stones for example: https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/1568519 > Results > During 11 years of follow-up we ascertained 436 > first incident cases of kidney stones. Ascorbic acid > use was associated with a statistically significant > 2-fold increased risk (Table). In contrast, multivitamin > use was not associated with kidney stone risk (RR, 0.86 [95% CI, 0.62-1.19]). and what is the baseline risk of kidney stones? https://www.uwhealth.org/urology/how-common-are-kidney-stones/11208 > The lifetime incidence of kidney stones is nearly 13 percent in > men and 7 percent in women. So a high intake of vitamin C supplements over your entire life would cause an additional 10% risk of experiencing one incident of kidney stones. One would assume that short-term high intake during times of illness would cause a proportionally smaller risk Its up to each to decide whether the risk is worth the benefit. Let me finish by pointing out a critical part of the protocol for Using vitamin C to fight an illness, and that is using a timer to maintain a regular dosing schedule throughout the day, and to take as much as you can tolerate WITHOUT diarrhea. This link also has a table of doses that Dr Cathcart ( yes, MD ) found effective for various illnesses. http://orthomolecular.org/library/jom/1981/pdf/1981-v10n02-p125.pdf > It was found that maximum relief of symptoms, the most shortening > of the course of the disease, and the greatest reduction in complications > could be obtained by the oral doses just below the point causing diarrhea. > This titration to bowel tolerance is usually easily sensed by the patient. In > many conditions symptoms are markedly suppressed but will return rapidly > if the dose levels are not maintained long enough. In the case of very toxic > diseases, doses may have to be taken every half hour. Even short delays in > taking these doses may prolong the disease.