Image 1 ALT: Close‑up of a cooked salmon fillet showing its pink‑red color, which comes from astaxanthin. Table of Contents What Is Astaxanthin? How It Works in the Body Proven Benefits (Science‑Backed) Emerging & Limited‑Research Benefits Dosage, RDA & Daily Value Food & Natural Sources Supplement Forms & How to Choose Deficiency & Why It Matters Safety,…