Normally, 1000 mg/day
During this 120 day cardio vascular cholesterol cleanse protocol...
500mg C
500mg l-lysine
200mg l-proline
...comprised of two tabs @ three times/day
...this is on top of normal daily
The product is HEART PLUS, from Cell Nutritionals
Vitamin C flushes out of the body rapidly, so the cleanse is dosed to maintain high levels in the bloodstream throughout the day for the cleansing to be effective.
Bill Sardi wrote an article about vitamin C that talked about this
If you want to keep your body saturated all day long with vitamin C. Take 225mg C every two hours. More than this and it just washes out and is not utilized. Less than this and you will not be 100% saturated. By vitamin C I mean 225mg of sodium ascorbate powder or swallowing a 250mg capsule or tablet of vitamin C. Or alternate them during your awake hours.
By saturated, I mean at maximum vitamin c levels.
So if you are ill and think maximum vitamin C will help — Take 225 mg every two hours.