If this is not a cure than what is? How much closer to death can anyone be.
https://youtu.be/VrhkoFcOMII

The Body can not store large amounts.
Regular vegies and fruit is more than enough of recommend amount. For anti-ageing larger amounts can be taken, but want make someone more than 100% healthy that is the same fallacy as vaccine and have over-unity body (machine).
Sepsis, back in the old days seamen had issues with it.  Yes, Vitamin C deficiency of not having fresh vegetable and fruit for weeks.
There is no proven case anyone overdosed of Vitamin C.  Depending how much poison is in the body frequent and quick runs to the toilet with a large dose is almost certain.