Everything DoseRank tracks on the grains shelf — Astaxanthin. The category itself is never ranked: 19 products get scored the moment you say what you want them to do.
How to read the scores
This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →
Answer a few questions about your goals, habits, stack, and budget. Then, DoseRank will find the products that best match your needs based on your answers. It's free and only takes 60 seconds! No account is required.
A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.
Questions
Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value — computed for the goal you picked, across this category's products. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.
Start with a goal, not a brand
Browsing grains supplements without a goal makes no sense — different products do different jobs, and “best” flips depending on which job you're hiring for. These are the 45 health outcomes that matter for this category. Pick yours, and the full evidence-ranked shelf loads for that goal alone.
Eye strainVisual fatigue or discomfort from eye use.3 rankedModerate-strong
Wrinkle severityDegree of visible skin wrinkling.2 rankedModerate-strong
Iodine statusBiochemical sufficiency of iodine.3 rankedStrong
Vitamin E statusBiochemical sufficiency of tocopherols/tocotrienols.10 rankedStrong
HemoglobinBlood oxygen-carrying protein concentration.5 rankedStrong
Muscle weaknessReduced ability to generate force.5 rankedModerate-strong
Aspartate aminotransferase (AST)Enzyme used to assess liver and muscle injury.1 rankedStrong
Pregnancy complicationsAdverse maternal or fetal events during pregnancy.5 rankedStrong
Fall riskLikelihood of falling due to instability or weakness.7 rankedModerate-strong
Vitamin D statusBiochemical sufficiency of vitamin D.11 rankedStrong
Omega-3 indexRed blood cell EPA+DHA content reflecting omega-3 status.2 rankedStrong
Potassium statusBody potassium balance.5 rankedStrong
Intestinal permeabilityBarrier integrity and leakiness of the gut lining.1 rankedModerate-strong
Digestive comfortSubjective ease and comfort of digestion.10 rankedModerate-strong
SatietySense of fullness after eating.12 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best grains supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 19 products against that goal's trials.