Yes....Vit C is so very useful...even can cure Sepsis (IV Marik sepsis protocol). We have a doc who recommends hi dose every hour for many ailments. I keep a reminder posted on our fridge.
To What is HAT sepsis protocol? BRAVE search summarizer gives:
HAT therapy for sepsis is a metabolic resuscitation protocol combining hydrocortisone, ascorbic acid (Vitamin C), and thiamine to address cellular dysfunction and oxidative stress in septic patients. The standard adult intravenous dosing regimen consists of hydrocortisone 50 mg every 6 hours, ascorbic acid 1500 mg every 6 hours, and thiamine 200 mg every 12 hours.
The therapy aims to improve outcomes by:
Restoring glucocorticoid receptor function through ascorbic acid’s antioxidant effects, allowing hydrocortisone to better manage inflammation.
Providing high-dose Vitamin C (up to 6000 mg/day) to counteract the "acute scurvy"-like depletion of antioxidants seen in sepsis.
Supporting cellular energy production and mitigating mitochondrial dysfunction with thiamine.
While early observational studies, such as Dr. Paul Marik’s 2016 report, suggested significant mortality reductions, subsequent meta-analyses of randomized controlled trials indicate that while HAT therapy may improve SOFA scores and reduce vasopressor duration, it has not consistently demonstrated a statistically significant reduction in hospital or 28-day mortality."
To the last point I would reply that the "Observational Study" that I looked at does not actually observe the HAT protocol and includes studies that just give Ascorbic Acid or just Thiamine, or 2 of the three and equates it with the HAT protocol, so is not an "Honest" observational study, it appears to just be designed to discredit the protocol.