The study you referred is from 1977, more then 40 years ago. Perhaps at that time researchers didnt had the tools they have now to see the real scenario.
There are studies like wish show it differently. This doesnt mean vitamin C in higher doses is for everyone and it can do harm in some people. Like everything it must be discussed with the doctor. My LLMD recommended 1000mg 3 /times a day and i dont take that because i think its too much. So its for one to decide with his doctor whats best
For example, this also a old one from 1989:
The effect of large doses of vitamin C on leukocyte function and some laboratory parameters
https://pubmed.ncbi.nlm.nih.gov/381229/More importantly a more recent one from Sep 2019 wish helps us understand that our immune system is not only constituted by Leukocytes, you cant ignore NK cells, lymphocytes , neutrohils.
https://akjournals.com/view/journals/1886/9/3/article-p73.xmlImmunomodulatory Properties of Vitamin C
Furthermore, HIGH doses of vitamin C not only stimulated murine immune cells, primarily dendritic cells, to more distinct interleukin (IL)-12 secretion [40], but also activated T and B cell functions [34, 41].
Neutrophils
In support, oral administration of vitamin C has been shown to enhance neutrophilic functions and to result in increased serum immunoglobulin levels in aging patients [67]
T Lymphocytes
T cells are enhanced in the presence of vitamin C in physiological concentrations, whereas proliferation and viability of T lymphocytes are also affected [37]. In a clinical study with elderly patients who received vitamin C (500 mg/day) versus placebo for one month, an increased T cell proliferation could be assessed in the serum as compared to the placebo group [73].
Natural Killer Cells
Proliferation of human NK cells derived from peripheral blood mononuclear cells could be accelerated by co-incubation with vitamin C resulting in higher cell numbers with accurate functional capacity [84].
Summary and Conclusions
Leukocytes including lymphocytes can actively accumulate vitamin C against a concentration gradient, which underlines not only vitamin C dependent functional but also developmental immune cell features. In fact, vitamin C has a pivotal impact on both innate and adaptive immune responses. Vitamin C is also involved in bacterial metabolism. It is known that several bacteria can ferment vitamin C, whereas the presence of this vitamin exposes others to oxidative stress, which may result in bacterial growth inhibition.
Post Edited (isitlyme) : 11/7/2020 4:26:17 PM (GMT-7)