How to compare

How to compare magnesium supplements without getting ripped off

A simple checklist for buying magnesium without overpaying.

Short answer

Compare on form, elemental dose, clean-label flags and cost-per-dose — in that order. Brand and packaging should come last.

Key comparison points

  1. 01Step 1 — Match the form
  2. 02Step 2 — Match the elemental dose
  3. 03Step 3 — Check clean-label flags
  4. 04Step 4 — Calculate cost-per-dose
  5. 05Step 5 — Decide what you're paying extra for
  6. 06What to ignore

Quick checklist

CheckWhy it matters
Magnesium formDifferent forms aren't directly comparable
Elemental mgThe number that actually matters
Cost per doseRemoves bottle-size confusion
Clean-label flagsAvoids paying premium for premium claims that aren't there

What FairDose compares

  • Like-for-like form matches
  • Elemental dose parity
  • Cost per comparable dose
  • Clean-label transparency

Stop reading. Start comparing.

Run a like-for-like magnesium glycinate comparison, or read the FairDose methodology.

Related magnesium guides

Informational only — not medical advice. FairDose does not tell you to start, stop or switch supplements. Always check the label and speak to a qualified professional if unsure.