Verified Supplement Data Primary-sourced

Supplement Stacks — Verified Supplement Data

By Erin Rose · Updated · Methodology · About Us

Evidence-based supplement stacks built around goals, life stages, and medications — each ingredient tied to its evidence and the right form.

Compare Magnesium Glycinate Products by Cost Per Day

Magnesium glycinate appears in more of our stacks than any other single product — here's how it compares on cost per day.

Ranked by cost per day, lowest first — from the Verified Supplement Data catalog, prices reviewed August 2026.
ProductDose/ServingServingsPriceCost/DayCertificationBuy
BulkSupplements Magnesium Glycinate Powder
Budget Pick
225mg200$19.97$0.18NoneBuy on Amazon
Vitamin Shoppe Magnesium Glycinate 400mg
Best Value
400mg90$19.99$0.23NoneBuy on Amazon
Doctor's Best High Absorption Magnesium200mg60$13.99$0.46NoneBuy on Amazon
Nature Made Magnesium Glycinate 200mg
Quality Pick
200mg60$15.67$0.51USP VerifiedBuy on Amazon
KAL Magnesium Glycinate 400400mg45$24.79$0.55NoneBuy on Amazon
Thorne Magnesium Bisglycinate200mg60$26.00$0.87NSF Certified for SportBuy on Amazon

About our data

Every comparison uses clinical evidence from PubMed systematic reviews, product label data from the NIH Dietary Supplement Label Database, and third-party certifications (USP, NSF). Products are ranked by cost per clinically-effective dose. See our methodology and editorial standards.