Everything DoseRank tracks on the vitamins shelf — Vitamin D3 (Cholecalciferol). The category itself is never ranked: 5.8k 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 vitamins 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.
All-cause mortalityDeath from any cause; lowest-level hard clinical outcome.2.8k rankedModerate-strong
HomocysteineAmino acid marker linked with vascular and methylation status.2.7k rankedStrong
Vitamin C statusBiochemical sufficiency of ascorbic acid.2.5k rankedStrong
Vitamin B12 statusBiochemical sufficiency of cobalamin.2.2k rankedStrong
Folate statusBiochemical sufficiency of folate.2.1k rankedStrong
Iron statusOverall iron sufficiency and availability.2.6k rankedStrong
Fall riskLikelihood of falling due to instability or weakness.2.5k rankedModerate-strong
Vitamin D statusBiochemical sufficiency of vitamin D.2.7k rankedStrong
Fracture riskLikelihood of bone fracture.2.9k rankedStrong
Uric acidPurine metabolism marker associated with gout and cardiometabolic risk.2.6k rankedStrong
Biotin statusBiochemical sufficiency of biotin.1.8k rankedStrong
Vitamin B6 statusBiochemical sufficiency of pyridoxine-related compounds.2k rankedStrong
Niacin statusBiochemical sufficiency of vitamin B3.1.8k rankedStrong
Bone mineral densityMeasure of bone strength and mineralization.3.1k rankedStrong
Common cold durationLength of cold episodes.2.6k rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best vitamins supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 5.8k products against that goal's trials.