Likely Safe High confidence

Sports Research Magnesium L-Threonate Capsules 2000mg (Magtein) – Gluten-Free, Vegan Brain Health Support

Sports Research ★★★★★ 4.7 · 2,081 reviews

Gluten-free labeling and NSF Gluten-Free certification reduce cross-contact risk; product is vegan and non-GMO with no explicit gluten-containing ingredients listed in available data.

🌾 Gluten-free labeled Non-GMO Vegan ✓ NSF Gluten-Free
$29.95
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Celiac verdict
Likely safe
Confidence
High
Type
Supplements
Size
90 count (pack of 1)
Price tier
Premium
Read
5 min
✅ Why it works
  • High-absorption Magtein (magnesium L-threonate) formulation; 2000 mg per serving
  • Gluten-free status with certification claimed by the brand
  • Vegan and non-GMO; vegan-friendly veggie capsules
  • Positive consumer feedback on sleep and cognitive benefits
  • One-month supply (90 capsules) and flexible pricing/discounts on platform
⚠ Keep in mind
  • Some users report headaches or stomach discomfort
  • Mixed durability of effects; not all users feel noticeable benefits
  • Price may be perceived as high for a monthly supply

Gluten safety details

Labeled gluten-free
Yes
Certifications
NSF Gluten-Free
Ingredient risks
None found
Cross-contact notes
No explicit cross-contact information provided beyond gluten-free labeling; no mention of shared facilities in provided sources.

Gluten-free labeling and NSF Gluten-Free certification reduce cross-contact risk; product is vegan and non-GMO with no explicit gluten-containing ingredients listed in available data.

Individual sensitivity to magnesium can vary Some users report headaches or stomach discomfort

What to expect

A magnesium L-threonate supplement marketed to support brain health, memory, focus, mood, and sleep. Users may notice improved sleep quality and mental clarity, according to many reviews. Some individuals may experience headaches or mild stomach discomfort; others report no adverse effects. The product is vegan, non-GMO, and gluten-free, with a 90-capsule supply (~1 month at 1 capsule daily).

👍 Best for
  • Consumers seeking cognitive support and memory benefits
  • Individuals aiming to improve sleep quality
  • Those requiring vegan, gluten-free magnesium options
👎 Not ideal for
  • buyers seeking low-cost magnesium supplementation with general daily needs rather than brain-focused forms
  • individuals who are highly sensitive to magnesium or who require immediate, acute-dose magnesium without a brain-targeted form

The full guide

Product snapshot

Sports Research Magnesium L-Threonate Capsules provide 2000 mg of magnesium L-threonate per serving, branded as Magtein, in vegan veggie capsules. The product is described as gluten-free and non-GMO, with a vegan capsule form. It comes in a 90-capsule bottle, which the data notes as about a one-month supply when used at one capsule daily. The listed price in the provided dossier is $29.95, and the product has a reported rating of 4.7 from 2,081 reviews.

What to expect in use

The product is marketed to support brain health, memory, focus, mood, and sleep. Customer feedback commonly cites improvements in sleep quality and cognitive clarity, with some reviewers describing life-changing sleep effects. Individual experiences vary; some users report headaches or mild stomach discomfort, and others notice no noticeable changes. The format is easy to swallow capsules, described as vegan and minimally additive by some reviewers.

Gluten safety and dietary fit

The product is labeled gluten-free and carries an NSF Gluten-Free certification, according to the brand. The gluten-free designation and certification reduce cross-contact risk, and the product is vegan and non-GMO. The available data do not indicate explicit cross-contact information beyond the labeling, and there is no listed gluten-containing ingredient in the provided sources. For celiac disease or gluten sensitivity, the verdict based on the provided evidence is likely_safe.

Value and who it’s for

This supplement may be best for consumers seeking cognitive support and sleep benefits in a vegan, gluten-free magnesium option. It may be less ideal for those seeking low-cost, general magnesium supplementation, or for individuals who are highly sensitive to magnesium and want a non-brain-targeted form. The price is listed at $29.95 for 90 capsules, with potential promotions or subscriptions noted in the data, affecting perceived value. The product is described as a premium offering in its category.

What shoppers say

💚 People liked

⚠ People flagged

Headaches or stomach discomfort reported by some users.
Some buyers feel effects are not noticeable or vary by individual.
Odor and flavor noted by a subset of users in reviews.

Key takeaways

  • Look for NSF Gluten-Free certification when choosing this product.
  • Expect 2000 mg of magnesium L-threonate per serving in 1 capsule daily.
  • A 90-capsule bottle equals about a one-month supply.
  • Effectiveness for sleep and cognition can vary among individuals.
How we assess this: Gluto summarizes manufacturer labeling, listing data, and community signals — it is not a medical guarantee. Always read the current label and confirm with the manufacturer before purchase, especially for celiac disease.

Evidence gaps for this product:
  • Full independent third-party lab verification beyond NSF gluten-free certification is not provided in the accessible sources.
  • No detailed third-party allergen/safety cross-contact data shown; no complete ingredient list beyond primary compound and capsule type.
  • Limited non-brand independent consumer testimonials beyond Amazon/retailer pages.
Likely Safe Sports Research Magnesium L-Threonate Capsules 2000mg (Magtein) – Gluten-Free, Vegan Brain Health Support $29.95
Buy on Amazon →