7 Best Magnesium Supplements of 2026 (Ranked & Reviewed)
Looking for a magnesium supplement? We reviewed the best magnesium supplements of the year, breaking down the forms, benefits, and who each one is truly best for so you can supplement smarter. Here's Our Top Picks!
👉 TLDR: our top pick is BIOptimizers
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Best Magnesium Supplement
- Editor's Choice: BIOptimizers
- Best for Mental Focus: Sports Research®
- Best for Stress Relief: NOBI NUTRITION
- Best for Sleep Quality: Sandhus Nutrition
- Best for Overall Wellbeing: MAGPLUS+
- Best for Heart Health: Dr. Mercola
- Best for Daily Energy: Nutricost
BIOptimizers Magnesium Breakthrough 500mg (60 Count)
If you want one magnesium supplement that does everything, this is it. With seven bioavailable forms, Magnesium Breakthrough supports deeper sleep, sharper focus, and full-body balance without overwhelming your system.
Seven forms of magnesium including glycinate, malate, citrate, taurate, orotate, threonate, and chelate.
Ideal for anyone seeking complete, head-to-toe magnesium support in one formula.
Sports Research® Magnesium L-Threonate Capsules 2000mg (90 Count)
Designed for the brain first, this Magtein® formula stands out for its ability to cross the blood-brain barrier, supporting memory, focus, and cognitive clarity while gently promoting calmer nights.
Magnesium L-Threonate (Magtein®), a clinically studied form for brain absorption and cognitive support.
Ideal for students, professionals, or anyone prioritizing focus, memory, and mental performance.
NOBI NUTRITION Magnesium Glycinate 400mg (120 Count)
A minimalist favorite, this high-absorption magnesium glycinate delivers calm without digestive discomfort making it a go-to choice for stress relief, muscle relaxation, and more restful sleep.
Chelated magnesium glycinate delivering 400mg elemental magnesium for gentle, efficient absorption.
Ideal for sensitive stomachs, stress-prone lifestyles, and nightly wind-down routines.
Sandhus Nutrition Magnesium Glycinate 400mg (120 Count)
A calming classic with a modern twist, this magnesium glycinate pairs relaxation support with antioxidant quercetin helping muscles unwind while supporting overall balance and daily resilience.
Chelated magnesium glycinate enhanced with quercetin for added antioxidant support.
Ideal for stress management, muscle comfort, and gentle daily supplementation.
MAGPLUS+ Magnesium L-Threonate Apigenin & L Theanine, 1500mg (60 Count)
This is magnesium for deep sleepers. With calming botanicals and brain-supporting magnesium threonate, it’s designed to quiet racing thoughts and help your body truly switch off at night.
Liposomal magnesium threonate, apigenin, L-theanine, and a seven-ingredient sleep-focused blend.
Ideal for light sleepers, anxious minds, and nighttime relaxation support.
Dr. Mercola Magnesium Advanced (90 Count)
Thoughtfully formulated for long-term health, this advanced magnesium blend supports bones, joints, and cardiovascular function while also contributing to calmer evenings and restorative sleep.
Multiple magnesium forms combined for bone, joint, brain, and cardiovascular support.
Ideal for adults focused on aging well and daily foundational health.
Nutricost Magnesium Plus 420mg (240 Count)
Straightforward, strong, and budget-friendly, this extra-strength magnesium delivers reliable muscle and energy support perfect for active lifestyles that demand more from recovery and performance.
Magnesium oxide and glycinate providing 420mg elemental magnesium per serving.
Ideal for athletes, gym-goers, and those needing higher daily magnesium intake.
