https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8995185/
关键是剂量要大（500毫克没什么用，要以克为单位），大剂量维生素C可以缩短新冠病程，降低死亡率，减轻严重性，减少长期后遗症等等。未见严重的副作用。因为没有商业利益，这种研究常常被忽视。
结论原文：
Briefly summarised, high-dose vitamin C has been shown to reduce inflammation, improve oxygen support status, and reduce mortality in COVID-19 patients, all without causing any negative side effects. Additionally, it may be beneficial for specific subgroups of patients with severe and critical condition, as well as for older individuals. High-dose vitamin C may prove to be an effective treatment for COVID-19. Furthermore, there is an urgent need to investigate the direct relationship between serum/plasma nutritional C levels and the incidence and severity of COVID-19 infection.
