US
NATURE

Nature Made Magnesium Oxide 250 mg

  • Magnesium
  • Tablet
  • Magnesium Oxide
  • 200
4.7/ 5 on Amazon34,500Amazon ratings10,000+bought last month4.7ProductDome score
  • Better rated than 62%
  • More reviewed than 96%
High confidenceLast refreshed Aug 4, 2026Amazon data + ProductDome analysis · methodology
Best forYou want a plain one-a-day magnesium oxide tablet with a long supply

A single-ingredient 250 mg magnesium oxide tablet sized for a 200 day one-a-day supply.

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ProductDome scorecard

How it ranks among the 108 magnesium we track

4.7/ 5ProductDome scoreHigh confidence
Owner satisfaction · 56% of scorecategory median 4.6★4.7

4.7★ across 34,500 Amazon ratings, Bayesian-smoothed toward the category average.

Evidence strength · 17% of scorecategory median 4,350 ratings5.0

34,500 Amazon ratings, weighted on a log scale so huge counts don't drown everything.

Buyer demand · 11% of score5.0

10,000+ bought on Amazon last month.

Data quality · 11% of score3.8

Brand identity, imagery, description and spec coverage.

The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 108 magnesium we track - how the scorecard works · full magnesium data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.

Overview

A magnesium oxide tablet at 250 mg per serving, positioned to support muscle, heart, bone and nerve function. 200 tablets sized as a 200 day supply, gluten free.

Nature Made positions this as a plain single-ingredient magnesium tablet, and the 200-tablet count matching a 200 day supply confirms the serving size without needing extra label detail: one tablet daily.

  • 250 mg magnesium oxide per tablet
  • 200 tablets, a 200 day supply
  • Gluten free
  • Supports muscle, heart, bone and nerve function

Who it's for

Fits anyone wanting a plain, one-a-day magnesium oxide tablet from an established brand without added flavors or ingredients. Not the pick for someone who wants magnesium glycinate or citrate, forms some people find gentler on digestion than magnesium oxide.

Strengths and trade-offs

Drawn from this product's published specifications.

What stands out
  • 200 day supply at one tablet daily
  • Supports several standard magnesium-linked functions
What to check first
  • Magnesium oxide absorbs less than some other forms
  • Unflavored, no added ingredients

Performance notes

Magnesium oxide is one of the more common and lower-cost magnesium forms, and the listing ties it to muscle, heart, bone and nerve function support along with energy metabolism, standard associations with magnesium status generally. The 200 count matching a 200 day supply confirms this is a one tablet per day product.

Specifications

BrandNATURE
Model1718
FormTablet
Supplement TypeMagnesium Oxide
Count200
BenefitsBone Support, Heart Function, Nerve Function, Energy Metabolism Support
FlavorUnflavored
DietGluten Free
AllergensGluten Free

How it compares

This product against the closest alternatives we track in magnesium.

ProductAmazon ratingRatingsProductDome score
Nature Made Magnesium Oxide 250 mgThis product4.7 / 534,5004.7 / 5
NaturalSlim MagicMag Magnesium Citrate Powder for StressNaturalSlim4.7 / 526,7004.6 / 5
NOW Supplements, Magnesium Citrate, Enzyme Function*, Nervous System Support*, 120 Veg…Now4.7 / 525,2004.6 / 5
Life Extension Magnesium CapsLife4.7 / 516,7004.6 / 5
Pure Encapsulations MagnesiumPURE4.7 / 513,6004.6 / 5
Frequently asked

Questions about the NATURE 1718

Common buyer questions answered straight from the product spec data - no fluff, no "it depends".

How much magnesium is in each Nature Made tablet?

250 mg of magnesium oxide per tablet.

How long does one bottle last?

200 tablets are sized as a 200 day supply, one tablet per day.

Is this magnesium supplement gluten free?

Yes, per the label.