The following from: LifeExtension magazine, July 2011, "Astaxanthin's Broad-Spectrum Benefits," pp. 54-62.
Astaxanthin has been shown to potently reduce harmful triglycerides and raise levels of HDL in both animal and human studies, while reducint the size of individual fat cells in an animal model of metabolic syndrome.
Astaxanthin has long been shown to protect aging eyes from cataracts, age-related macular degeneration, and glaucoma. More recent scientific findings indicate astaxanthin as a multimodal intervention for numerous forms of degenerative disease. These include cardiovascular disease, cancer, metabolic syndrome, cognitive decline, age-related immune dysfunction, stomach and eye conditions, and skin damage. Astaxanthin is safe in a wide range of doses. As little as 4-6 mg per day has been shown to effectively support eye health. Between 6 and 18 mg are indicated for management of metabolic syndrome. As much as 40 mg per day mitigates H. pylori-induced gastritis, with no side effects reported at any of these doses.