Everything DoseRank tracks on the protein blends shelf — Ferrous Bisglycinate. The category itself is never ranked: 453 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 protein blends 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.
FerritinMarker of iron stores.344 rankedStrong
HemoglobinBlood oxygen-carrying protein concentration.345 rankedStrong
Pregnancy complicationsAdverse maternal or fetal events during pregnancy.331 rankedStrong
Potassium statusBody potassium balance.342 rankedStrong
Sarcopenia statusPresence of low muscle mass and function.168 rankedStrong
Lean body massNon-fat body mass, often used as a marker of preserved musculature.378 rankedStrong
Protein statusAdequacy of protein nutrition and body protein reserves.73 rankedStrong
Kidney stone riskLikelihood of nephrolithiasis formation or recurrence.377 rankedModerate-strong
Sodium statusBody sodium balance.371 rankedStrong
Muscle massQuantity of skeletal muscle tissue.379 rankedStrong
StrokeCerebrovascular event causing neurologic injury.343 rankedStrong
Hydration statusAdequacy of body water and fluid balance.363 rankedStrong
Infection durationLength of infectious illness episodes.105 rankedModerate-strong
Infection incidenceOverall rate of infectious illness.120 rankedStrong
Muscle weaknessReduced ability to generate force.251 rankedModerate-strongNothing is ranked yet — the shelf stays locked until you pick a goal.
No goal, no ranking.
A “best protein blends supplement” list without a goal would be marketing, not evidence. Pick what you want to improve and DoseRank scores all 453 products against that goal's trials.