Everything DoseRank tracks on the phosphorus shelf — Milk Thistle. The category itself is never ranked: 18 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 phosphorus 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.
Aspartate aminotransferase (AST)Enzyme used to assess liver and muscle injury.2 rankedStrong
IrritabilityLow threshold for frustration or anger.2 rankedLimited
Iodine statusBiochemical sufficiency of iodine.3 rankedStrong
Alanine aminotransferase (ALT)Liver enzyme used to assess hepatocellular injury.4 rankedStrong
Omega-3 indexRed blood cell EPA+DHA content reflecting omega-3 status.2 rankedStrong
Thyroid functionOverall function of the thyroid axis.3 rankedStrong
Lactation adequacySufficient breast milk production or breastfeeding success.2 rankedLimited
Calmness or relaxationReduced tension and greater sense of calm.1 rankedStrong
Phosphate statusBiochemical phosphate balance.2 rankedStrong
Disease progressionClinical worsening or advancement of an underlying condition.1 rankedModerate-strong
Thyroid-stimulating hormonePituitary hormone used to assess thyroid status.3 rankedStrong
Joint functionAbility of joints to move and support normal activity.3 rankedStrong
Liver functionOverall biochemical or clinical hepatic performance.3 rankedModerate-strong
Wrinkle severityDegree of visible skin wrinkling.1 rankedModerate-strong
Eye strainVisual fatigue or discomfort from eye use.1 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best phosphorus supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 18 products against that goal's trials.