Andrew Saul, the megavitamin man writes: If I should die tomorrow, I want you to have seen this today. This is the definitive dosage table by Robert F. Cathcart, MD. But you need to read the article http://www.doctoryourself.com/titration.html for real understanding of vitamin C therapy, especially the importance of bowel tolerance as an indicator of saturation. These are oral doses. Physicians use sodium ascorbate intravenously. For oral dosing, cheap ascorbic acid works just fine. A gram is 1,000 mg. Buffer with a quarter teaspoon baking soda (sodium bicarbonate) if you have a sensitive stomach.