My apologies - I didn't mean to be misleading. It's just that I'm tired of all the scaremongering (had an argument with a fructose alarmist earlier so I'm a little cranky) particularly with vaccination.
My reply to both your and Serpentine's points, is that taking that point of view means that doing anything is a potential health risk - it's all a matter of evaluating the acceptable risk.
You need considerable ingestion over an extended period for Vitamin C to cause a health risk, such that barring any other underlying conditions, you would have to be taking silly amounts orally on a daily basis. If you'd like me to look up this value, I can.
Here's a fun fact: water fails the occupational exposure limits for hazardous chemicals*, which used to be defined as ingestion of 100 times the daily exposure in a single dose should produce no adverse side effects - 100 times the recommended total daily intake of water is 370 litres, which simply isn't physically possible.
Does that mean you should stop drinking water as it's a health risk?
*This is a silly example if it isn't obvious - OELs are now defined on a case by case basis but water does have a oral LD50 of 90ml/kg: link.