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Nature Made vs NOW Foods Magnesium Glycinate (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Nature Made scores higher on our rubric (86 vs 79 on our 0-100 execution score), driven by its USP Verified certification - an independent check on identity, potency, and purity that few magnesium glycinate products carry. On cost the picture has flipped: Nature Made now runs about $0.19 per day against NOW Foods at about $0.22 per day, after a 29% price drop on Nature Made in August 2026. It was the pricier of the two and is now the cheaper one, which means it leads on both score and cost, and the wider gap we once published.
The NOW figure moved because its 240-tablet bottle is 120 two-tablet servings, not the 180 our record once claimed. In our view, if you want independent USP verification, Nature Made is worth the small premium; if you want the lowest cost per dose from a reputable brand, NOW Foods delivers.
Nature Made Magnesium Glycinate 200mg
Nature Made
NOW Foods Magnesium Glycinate
NOW Foods
Head-to-Head Comparison
| Category | Nature Made Magnesium Glycinate 200mg Nature Made | NOW Foods Magnesium Glycinate NOW Foods |
|---|---|---|
| Brand Score | 86/100Winner | 79/100 |
| Dosing & Form | 25/25Winner | 25/25 |
| Purity | 23/25Winner | 19/25 |
| Value | 15/25Winner | 15/25 |
| Transparency | 23/25Winner | 20/25 |
| Cost/Day | $0.19Winner | $0.22 |
| Price checked | 2026-08-10 | 2026-06-08 |
| Dose/Serving | 200mg | 200mg |
| Form | magnesium glycinate | magnesium bisglycinate |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
Nature Made and NOW Foods are two of the most trusted mainstream supplement brands, and both make a clean glycinate-form magnesium at a reasonable price. Nature Made is the pharmacy staple with USP Verification; NOW Foods is the natural-products stalwart with NPA GMP-audited manufacturing.
Both deliver 200mg of elemental magnesium in the glycinate form that research supports for sleep and relaxation. The difference is the certification on the bottle and the cost per dose.
We scored both on evidence, quality, cost per effective dose, and transparency.
Detailed Score Breakdown
Nature Made Magnesium Glycinate 200mg
Nature Made
Magnesium glycinate at 200mg elemental per serving from a USP Verified brand
Nature Made products are USP Verified. This is the #1 pharmacist-recommended magnesium brand.
$0.19/day at 200mg elemental after a 29% August 2026 price drop - now level with the top pick on cost, with the USP Verified seal as the differentiator
Full disclosure. USP Verified seal on packaging. Form clearly specified. No proprietary blends.
One of the few USP Verified magnesium glycinate products. The safety and quality assurance justifies the slight price premium.
NOW Foods Magnesium Glycinate
NOW Foods
Magnesium bisglycinate at adequate elemental dose
NPA GMP audited facility. NOW Foods has a strong quality track record. No USP/NSF certification on this product.
$0.22/day at 200mg elemental - mid-pack rather than the bargain a mis-stated serving count once made it look, since the 240-tablet bottle is 120 two-tablet servings, not 180
Good disclosure. Elemental amount clearly stated. Some inactive ingredients (rice flour, gelatin capsule).
Hard to beat on price-per-serving for magnesium glycinate. NOW Foods is a reliable mid-tier brand.
How We Compared These Products
Every product in our database is scored on four equally-weighted pillars: dosing accuracy and form quality, purity verification (third-party testing), cost per clinically effective dose (not cost per pill), and label transparency. Each pillar is worth 25 points for a total of 100.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.