{"id":14972,"date":"2021-07-14T10:29:24","date_gmt":"2021-07-14T02:29:24","guid":{"rendered":"https:\/\/gogoherbs.com\/?p=14972"},"modified":"2026-09-25T08:28:35","modified_gmt":"2026-09-25T00:28:35","slug":"%e9%a1%9e%e8%83%a1%e8%98%bf%e8%94%94%e7%b4%a0%ef%bc%9a%e8%91%89%e9%bb%83%e7%b4%a0_%e8%9d%a6%e9%9d%92%e7%b4%a0_%e8%8a%b1%e9%9d%92%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/gogoherbs.com\/en\/%e9%a1%9e%e8%83%a1%e8%98%bf%e8%94%94%e7%b4%a0%ef%bc%9a%e8%91%89%e9%bb%83%e7%b4%a0_%e8%9d%a6%e9%9d%92%e7%b4%a0_%e8%8a%b1%e9%9d%92%e7%b4%a0","title":{"rendered":"What is astaxanthin? Its effects, food sources, and how to choose food."},"content":{"rendered":"
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Astaxanthin is a name that has become increasingly common on health supplement shelves in recent years. It gives salmon its orange-red color, shrimp and crab their reddish hue after cooking, and flamingos their pinkish color\u2014these colors are not decorative, but traces of the same natural pigment. It belongs to the carotenoid family, but it differs from other members in one key way: it is not converted into vitamin A in the body, nor is it a water-soluble pigment.<\/p>\r\n<\/blockquote>\r\n

Based on official and academic sources, this article clarifies three things:What exactly is astaxanthin?<\/b>\u3001How should the sentence "Its antioxidant power is 500 times that of Vitamin E" be read?<\/b>as well asTo what extent do existing studies support the two most concerning areas: skin hydration and screen-induced eye strain?<\/b>The article also summarizes natural food sources, recommended daily doses and safety limits, as well as three key points to consider when choosing products, and situations where it is necessary to consult a doctor first.<\/p>\r\n

Medical Boundary Reminder:<\/strong>This article is a compilation of nutrition and health knowledge.This does not constitute diagnosis, treatment or prescription advice.<\/b>Astaxanthin supplements are considered a daily nutritional aid.It cannot replace a balanced diet, eye exams, corrective lenses, sun protection, or doctor's prescription treatment.<\/b>Pregnant women, breastfeeding mothers, children under 14 years of age, those taking anticoagulants or other prescription medications, those with bleeding disorders, or those about to undergo surgery should consult a doctor or pharmacist before use. If you experience sudden vision loss, blackouts or flashes of light, or red and painful eyes, please seek medical attention immediately.<\/div>\r\n
Table of contents<\/strong><\/div>\r\n
I. What is astaxanthin? Let's first understand its identity.<\/a>
2. How should we read "Its antioxidant power is 500 times that of Vitamin E"?<\/a>
III. The effects of astaxanthin: What research says<\/a>
IV. Natural Food Sources of Astaxanthin<\/a>
5. How much should I eat each day? When should I eat?<\/a>
VI. Upper limit of dosage and adverse reactions<\/a>
VII. Safety Reminder: Who should consult a doctor first?<\/a>
8. How to choose astaxanthin health supplements?<\/a>
IX. Frequently Asked Questions (FAQ)<\/a>
10. Sources of Information<\/a><\/div>\r\n

I. What is astaxanthin? Let's first understand its identity.<\/h2>\r\n

Astaxanthin is aOxygenated carotenoids (also known as lutein)<\/b>Chemically, it belongs to the "ketocarotenoid" family, with the full name 3,3\u2032-dihydroxy-\u03b2,\u03b2-carotene-4,4\u2032-dione. It is mainly synthesized in nature by microalgae.Haematococcus pluvialis<\/b>Under stressful conditions such as strong light and insufficient nutrition, astaxanthin accumulates in large quantities, turning the cells into red dormant cells for self-protection\u2014which is also the main source of raw materials for current supplements.<\/p>\r\n

Astaxanthin travels up the food chain: microalgae are consumed by krill, shrimp, and crabs, and then by salmon and trout, giving seafood its orange-red color. Humans previously obtained it primarily through seafood consumption, only recently developing it into concentrated supplements.<\/p>\r\n

(1) Three key points that are easily confused<\/h3>\r\n