Astaxanthin, Lutein, and Zeaxanthin

Astaxanthin is a red pigment found in marine animals and microorganisms, whereas lutein and zeaxanthin are yellow pigments found in vegetables and fruits. These xanthophyll carotenoids can act as antioxidants by capturing free radicals and oxygen singlets. In addition, they are involved in the prevention of degenerative neurological and cardiovascular diseases and in the protection of tissues against damage caused by sunlight. This chapter describes the potential of astaxanthin, lutein, and zeaxanthin as dietary supplements based on their natural availability and benefits to human health.