Lingual Vitamin C Test

Stephen Barrett, M.D.

This test is performed by placing a drop of 2,6-dichloro-indophenol on the tongue and noting the time required for the color to change from blue to pink. Proponents claim that this indicates whether there is enough vitamin C in the body. However, three published studies have demonstrated that the test is not valid. for this purpose:

References

This article was revised on April 9, 2002.

Links to Recommended Vendors

  • PharmacyChecker.com: Compare drug prices and save money at verified online pharmacies.
  • ConsumerLab.com: Evaluates the quality of dietary supplement and herbal products.
  • Amazon.com: Discount prices, huge inventory, and superb customer service
  • OnlyMyEmail: Award-winning anti-spam services.
  • 10 Types: Website design, development, and hosting with superb technical support.