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Magnesium compared

By the Still Stride teamFacts checked Oct 16, 2026Label facts only · no ratings

Magnesium supplements compared on list price, servings, price per serving, the form of magnesium, elemental magnesium per serving and third-party testing.

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These statements have not been evaluated by the Food and Drug Administration. The products listed are not intended to diagnose, treat, cure, or prevent any disease. Still Stride compares label facts, prices and third-party testing only. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant or nursing, take medication, have a medical condition, are scheduled for surgery or are under 18. Medical disclaimer

At a glance

Momentous Magnesium Bisglycinate

Momentous
From: $16.99 · $0.57/serving

Magnesium bisglycinate capsules; Momentous lists a two-capsule serving.

  • Elemental magnesium per serving: 200 mg (2 capsules)
  • Third-party testing: NSF Certified for Sport (listed on nsfsport.com)
Label facts checked Oct 16, 2026 on the official product page.
$16.99Visit ↗Not an affiliate link

Momentous Magnesium Malate

Momentous
From: $17.99 · $0.60/serving

Magnesium bound to malic acid (as dimagnesium malate).

  • Elemental magnesium per serving: 220 mg
  • Third-party testing: NSF Certified for Sport (listed on nsfsport.com)
Label facts checked Oct 16, 2026 on the official product page.
$17.99Visit ↗Not an affiliate link

Momentous Magnesium L-Threonate

Momentous
From: $49.99 · $1.67/serving

Magnesium L-threonate using the branded Magtein ingredient; a three-capsule serving.

  • Elemental magnesium per serving: 145 mg (from 2 g Magtein, 3 capsules)
  • Third-party testing: NSF Certified for Sport (listed on nsfsport.com)
Label facts checked Oct 16, 2026 on the official product page.
$49.99Visit ↗Not an affiliate link

Comparison table

ProductList price (from)Servings per containerPrice per servingElemental magnesium per servingMagnesium formFormatThird-party testing
Momentous Magnesium Bisglycinate
$16.9930$0.57200 mg (2 capsules)Magnesium bisglycinateCapsulesNSF Certified for Sport (listed on nsfsport.com)Visit ↗Not an affiliate link
Momentous Magnesium Malate
$17.9930$0.60220 mgDimagnesium malateCapsulesNSF Certified for Sport (listed on nsfsport.com)Visit ↗Not an affiliate link
Momentous Magnesium L-Threonate
$49.9930$1.67145 mg (from 2 g Magtein, 3 capsules)Magnesium L-threonate (Magtein)CapsulesNSF Certified for Sport (listed on nsfsport.com)Visit ↗Not an affiliate link

Price per serving = one-time list price ÷ servings per container, from the brand’s page on Oct 16, 2026; subscription and sale prices differ. “See site” means we couldn’t confirm the detail. Always read the supplement facts panel before you buy.

How we compare

Every fact above comes from the brand’s official product page, linked on each card with the date we checked it. Third-party certification is shown only when the product appears in the certifier’s own public listing, or when the brand publishes batch test results (labeled as such). We don’t publish ratings or “best” awards, we haven’t tested these products, and we don’t make disease or treatment claims. How brands get listed.

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