All You Need To Know About Vitamin C Deficiency

When do you consider vitamin C deficiency?

Normal vitamin C levels range from 0.6 to 2 milligrams per deciliter (mg/dl). If the test is lower than 0.6 mg/dl it means vitamin C deficiency. Before vitamin C blood test fasting is preferred. Vitamin C supplements and vitamin C rich food should be avoided 24 hours before the test.