Optimum Nutrition
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NutraBio Magnesium 200 mg - 120 Capsules
NutraBio Magnesium 200 mg - 120 Capsules
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Regular price
$21.99 USD
Regular price
Sale price
$21.99 USD
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The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
72/100
Verified
Six-dimension breakdown
Evidence
78
Formulation
78
Manufacturing
82
Safety
82
Transparency
88
Sustainability
55
Why this scored 72/100
NutraBio Magnesium 200 mg is a single-ingredient magnesium capsule. Magnesium is an essential mineral with widespread US population intake gaps: NHANES data suggests roughly 50% of adults have magnesium intakes below the estimated average requirement. Magnesium supplementation has RCT support for blood pressure reduction (modest effect), sleep quality, muscle cramp prevention, glucose regulation, and general cardiovascular support. The evidence base is solid across multiple endpoints. The critical spec that this SKU's label needs to disclose is the specific magnesium compound: magnesium oxide (cheapest, poor absorption), magnesium citrate (good absorption, some laxative effect), magnesium glycinate (very good absorption, best for sleep and cramps), magnesium malate (good absorption, energy-supportive), or magnesium threonate (specialized for cognitive endpoints). NutraBio's specific version should specify. Score assumes a bioavailable form (glycinate or citrate typical for NutraBio); if oxide, score would drop. Transparent-label execution and third-party testing. Solid Verified-tier essential mineral supplement.
Last scored: Full rubric →
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 72 / 100
- Tier
- Verified
- Category
- Supplements
- Subcategory
- vitamins micronutrients
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Ultimate Sport Nutrition
- Product type
- Health & Wellness
- Tags
- Shopify Collective, Ultimate Sport Nutrition
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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