Cautions

1. Extra calcium may be required to offset the leaching
   that occurs with the mineral with high intakes of
   vitamin C.
   
2. Because of the acidic nature of vitamin C it is
   advisable to rinse teeth after taking with liquid
   orally.
   
3. If you are taking more than 2 grams of vitamin C daily
   you should take more folic acid and B12 (members of
   the B complex vitamins), at least the recommended
   daily amount.
   
4. People with a partial deficiency of one of the enzymes
   eg. 6-GPD should not take large amounts of vitamin C.
   
5. Cancer patients should not use vitamin C if undergoing
   radiation treatment or chemotherapy.
   
6. If you are taking greater than 750mg per day, then
   take a magnesium supplement.
   
7. It is possible that large amounts of vitamin C
   might reverse the anticoagulant of the blood thinner
   warfarin (Coumadin).
   
8. Inform your doctor if you are taking large
   amounts of vitamin C as it can change the results of
   lab tests for sugar in the blood and urine and give
   false negative results in tests for blood in stool
   specimens.
   

---

---