[nbritton]

Anyone here taking astaxanthin? What dosage are you taking and what have you noticed it has helped with?

[hamster-bamster]

Originally Posted by nbritton

Anyone here taking astaxanthin? What dosage are you taking and what have you noticed it has helped with?

I do not take it, but I take AREDS supplement because I am at risk of macular degeneration. AREDS contains zeaxanthin. I take a capsule in the AM and a capsule in the PM. I cannot tell if it has helped, because I am trying to protect myself against an illness that develops with age. I am 43.

[nbritton]

Originally Posted by nbritton

Anyone here taking astaxanthin? What dosage are you taking and what have you noticed it has helped with?

Neurobiol Aging. 2013 Nov;34(11):2449-56. doi: 10.1016/j.neurobiolaging.2013.05.007. Epub 2013 Jun 12.
Low macular pigment optical density is associated with lower cognitive performance in a large, population-based sample of older adults.
Feeney J, Finucane C, Savva GM, Cronin H, Beatty S, Nolan JM, Kenny RA.

Abstract:

Macular pigment (MP) is comprised of the carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ), which selectively accumulate at the macula (central retina) of the eye and are neuroprotective. These carotenoids are also present in the brain, and evidence suggests a close correlation between retinal and brain concentrations. We investigated the relationship between MP and cognitive function in 4453 adults aged ≥ 50 years as part of The Irish Longitudinal Study on Aging. Macular pigment optical density (MPOD) was determined using customized heterochromatic flicker photometry-a quick and noninvasive way of measuring the concentration of the pigment. Lower MPOD was associated with poorer performance on the mini-mental state examination (p = 0.026) and on the Montreal cognitive assessment (p = 0.016). Individuals with lower MPOD also had poorer prospective memory (p = 0.011), took longer time to complete a trail-making task (p = 0.003), and had slower and more variable reaction times on a choice reaction time task (p = 0.000 and 0.001). These associations were only slightly attenuated following adjustment for physical and mental health. There was no significant association between MPOD and verbal fluency, word recall, visual reasoning, or picture memory. Overall, the findings support the theory that xanthophyll carotenoids impact on cognitive function, underscoring the need for exploration of novel, noninvasive biomarkers for cognitive vulnerability and preventive strategies.