Best Magnesium Glycinate Supplements 2026
Doctor's Best Magnesium Glycinate Lysinate ($20.99) is the best overall — TRAACS-chelated true glycinate form, 200mg elemental magnesium per tablet, 4-month supply. For clinical-grade purity: Pure Encapsulations. For full-spectrum coverage: BIOptimizers Breakthrough.
See Today’s Price →At a Glance
Magnesium Glycinate Supplements Buying Guide
Photo by Beelith USA / PexelsMagnesium glycinate is the most bioavailable form of magnesium and the gentlest on the stomach — chelated to glycine, it absorbs up to 10x better than magnesium oxide and rarely causes the laxative effect common with citrate. It's the preferred form for sleep support, anxiety relief, and muscle recovery.
Glycinate vs Other Magnesium Forms
Magnesium oxide (the cheapest form, found in most drugstore multivitamins) absorbs at roughly 4%. Magnesium glycinate absorbs at 40%+ because the mineral is bound to an amino acid that uses its own transport pathway. Magnesium citrate absorbs well but has a laxative effect that limits the dose you can take comfortably. Glycinate is the form to choose for daily supplementation without GI issues.
Dosage and Timing
The RDA for magnesium is 310-420mg/day for adults. Most people are deficient. For sleep: 200-400mg glycinate 30-60 minutes before bed. For general deficiency: split into two doses (morning and evening). Start at 100mg and increase over two weeks to assess tolerance. At therapeutic doses, magnesium glycinate is virtually non-laxative compared to other forms.
What to Check on the Label
Look for "elemental magnesium" content — a label reading "500mg magnesium glycinate" may only deliver 75mg elemental magnesium. Doctor's Best and Pure Encapsulations both report elemental magnesium clearly. Avoid products with magnesium stearate as the primary magnesium source (it's a flow agent, not a therapeutic form).
For related comparisons, see our guides to Magnesium Supplements for Sleep, Magnesium Supplements Under $50, and Magnesium Supplements Under $25.
Watch Before You Buy
Our Picks
Doctor's Best High Absorption Magnesium Glycinate Lysinate (Best Overall) — $17 See Price →
Pure Encapsulations Magnesium Glycinate (Best for Purity) — $34 See Price →
BIOptimizers Magnesium Breakthrough Supplement with 500mg - 7 Forms of Magnesium (Best Full-Spectrum) — $16 See Price →
Showing 3 of 3 products
Doctor's Best High Absorption Magnesium Glycinate Lysinate
“Doctor's Best offers the most affordable quality magnesium glycinate — chelated form with excellent absorption at a price that makes daily use accessible.”
See Today’s Price →What we like
- Chelated magnesium glycinate lysinate
- 200mg elemental per 2 tablets
- 100mg per tablet (flexible dosing)
- Third-party tested
- Affordable
Watch out for
- 2 tablets per serving
- Magnesium lysinate is slightly different from pure glycinate
Pure Encapsulations Magnesium Glycinate
“Pure Encapsulations is the healthcare practitioner's choice for magnesium glycinate — the cleanest form at a price that reflects genuine quality.”
See Today’s Price →What we like
- 120mg elemental magnesium glycinate per capsule
- Highly bioavailable form
- Hypoallergenic — no fillers
- NSF certified
Watch out for
- Expensive
- High-quality brands always cost more
BIOptimizers Magnesium Breakthrough Supplement with 500mg - 7 Forms of Magnesium
“BIOptimizers' 7-form magnesium is premium and comprehensive — overkill for most, but genuinely useful if simple magnesium hasn't resolved your deficiency symptoms.”
See Today’s Price →What we like
- 7 magnesium forms
- Comprehensive formula
- Third-party tested
- Capsule form
Watch out for
- Price per serving higher than simple magnesium oxide
- 7-form blend may not be necessary for everyone
- Strong marketing claims
Frequently Asked Questions
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