The Magnesium Decoder: Pick the right form, read any label in 60 seconds, and stop overpaying

Which magnesium should you buy? This guide shows you how to read the label, what each form is, and what 100 mg of real magnesium costs.

$7 · instant download · 28-page PDF + 3 printable pages + Excel tracker

The quick answers

• Read the label: the big number on the front is often the whole compound. One real taurate label says "1,500 mg" on the front and 120 mg of magnesium on the Supplement Facts panel. That panel is the line that counts.
• Compare the forms: glycinate, citrate, oxide, malate, chloride, taurate, threonate and more, each on one simple card.
• Know the cost: 30 products ranked by price per 100 mg of magnesium, from about $0.03 to $1.16 (brand-store prices, checked 21 Oct 2026).

What's inside

• The 10 most-asked magnesium questions, each with a short, plain answer.
• Buffered glycinate check: 3 steps to spot glycinate blended with oxide, using labels checked 21 Oct 2026.
• Price table: 30 products, plus 8 we could not calculate and why.
• Evidence chapter: what studies found for sleep, anxiety, blood pressure, migraine, cramps and more. Small and industry-funded studies are named.
• Food first: top magnesium foods and what 100 mg costs from everyday food.
• Printables: shopping checklist, label worksheet, and 2-week notes for your clinician.
• Excel tracker: compare the 30 products and work out the cost of your own bottles.

22 sources, including NIH, PubMed-indexed studies and USDA. No brand paid to appear. No affiliate links.

What this is not: a dosing plan, a diagnosis, or a promise of results. It does not tell you which magnesium to take or how much.

Not medical advice. This is a shopping and evidence guide. It does not diagnose, treat, or prescribe. Check with your doctor or pharmacist before starting a supplement, especially if you have kidney disease, are pregnant, or take prescription medicines.

Free 4-page sample, no email needed: https://renvolife.com/downloads/magnesium-decoder-sample.pdf

Guide page: https://renvolife.com/guides/magnesium-decoder/