Category
Selenium, iodine, chromium, potassium, trace minerals and electrolytes
Based on our analysis of 368 minerals & electrolytes products, see the full rankings above. Scores are based on label quality - dosage transparency, formulation cleanliness, and ingredient disclosure.
Every product is scored algorithmically using data from the NIH Dietary Supplement Label Database. The SupplementScore evaluates dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts).
No. The score reflects label quality, how transparent and clean the product label is, not clinical efficacy, bioavailability, or safety. A higher score means better label practices, not guaranteed results.