Each serving gives you 200mg of **Magnesium** from lysinate glycinate chelate — a premium chelated form that absorbs well and is easy on your stomach. The label recommends two servings daily (four tablets), which puts you at 400mg, right at the top of the clinically studied supplemental range. At that intake, you're well-covered for goals like sleep quality, muscle relaxation, stress support, and energy production.

Magnesium deficiency is extremely common — estimated to affect over half the population — and standard blood tests often miss it. If you follow the full label dose, you're getting enough to meaningfully close that gap. The chelated form also means you're unlikely to experience the laxative effects that come with forms like citrate or oxide.

The tradeoff is pill burden: hitting 400mg means four tablets a day. If you only take one serving (200mg), you're still within the effective range but at the lower end — enough for general maintenance, though you may want the full dose if you're targeting a specific benefit like sleep or recovery.

BioStacks
Doctor's Best

High Absorption Magnesium 100 mg

2 Tablets × 2/day · 120 servings · $0.17/serving

iHerbAmazon

Best for

Sleep

Ingredients (1)

Magnesium

100%

Dose/day

400 mg

Target

100–400 mg

Form

Premium

Other Ingredients (6)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Hydroxypropyl CelluloseBinder

An inert modified-cellulose polymer used as a binder, film-former, and disintegrant.

HypromelloseCapsule

Plant-derived capsule material from cellulose

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Best taken in the evening

Magnesium glycinate is the gentlest form on the gut and the one most people take at night. Absorption doesn't change with the clock — consistency does.

With or without food
Space it a couple of hours from Iron and Calcium
Label directs 2 servings — keep one for the evening

On the label

Suggested Adult Use: Take 2 tablets twice daily, or as recommended by a nutritionally informed physician.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$20.99

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Near the median of 579 magnesium supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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