Everything DoseRank tracks on the feeding shelf — Retinyl Palmitate. The category itself is never ranked: 168 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 feeding 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.
Night vision or dark adaptationAbility to see or adapt under low-light conditions.29 rankedStrong
Lean body massNon-fat body mass, often used as a marker of preserved musculature.49 rankedStrong
C-reactive proteinAcute-phase inflammatory marker.35 rankedStrong
Potassium statusBody potassium balance.41 rankedStrong
Zinc statusBiochemical sufficiency of zinc.33 rankedStrong
TriglyceridesCirculating triglyceride concentration.53 rankedStrong
FerritinMarker of iron stores.30 rankedStrong
HemoglobinBlood oxygen-carrying protein concentration.30 rankedStrong
Vitamin A statusBiochemical sufficiency of retinoids or carotenoid-derived vitamin A.29 rankedStrong
Vitamin E statusBiochemical sufficiency of tocopherols/tocotrienols.63 rankedStrong
Niacin statusBiochemical sufficiency of vitamin B3.27 rankedStrong
Muscle massQuantity of skeletal muscle tissue.52 rankedStrong
Alanine aminotransferase (ALT)Liver enzyme used to assess hepatocellular injury.26 rankedStrong
Exercise recoveryReturn to baseline function after exertion.62 rankedStrong
Phosphate statusBiochemical phosphate balance.22 rankedStrongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best feeding supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 168 products against that goal's trials.