Age-related Macular Degeneration

Frequently Asked Questions

14. What is the dosage of the AREDS formulation?

The clinically effective doses tested in AREDS and AREDS2 are

  • 500 milligrams (mg) of vitamin C
  • 400 international units of vitamin E
  • 80 mg zinc as zinc oxide (25 mg in AREDS2)
  • 2 mg copper as cupric oxide
  • 15 mg beta-carotene, OR 10 mg lutein and 2 mg zeaxanthin.

A number of manufacturers offer nutritional supplements that were formulated based on these studies. The label may refer to “AREDS” or “AREDS2.”