SPDS Meeting Book

2.   Zeaxanthin

o β β carotene 3 3' diol; dietary , ‐ ‐ , ‐ o Zeaxanthin differs from lutein only by placement of single  double bond. o Commercial and supplemental roles • Also accumulates in human retina; predominates in macula lutea • Reportedly rescues AMD • Colors white egg yolks yellow • Colorant  (E161h) o Structure

o Proposed daily dose: 2 mg

3.   β‐Cryptoxanthin o (3R 3’R 6’R) β ε carotene 3 3’ diol; dietary , , ‐ , ‐ ‐ , ‐ o Commercial and supplemental roles • Provitamin in humans; converted to vitamin A

• Possible antioxidative DNA protection, bone health, others • Colorant (E161c) in Australia and New Zealand; not in US or EU o Structure

o Proposed daily dose: 4 mg