21st Century Magnesium 250 mg

Backed by 3 studies

Overall grade based on research across 2 ingredients.

71out of 100Grade B

Research evidence score

Weighed against 3 published studies · led by Calcium

Solid pick. Magnesium has real research behind it, Calcium is only a light dose here.

Based on the ingredients we could read from this scan. A full label may include more — like added sugars, colorings or other ingredients — than we captured here.

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Ingredient breakdown

CalciumSupports bone density and muscle contraction

Research: Established essential nutrientDaily Value: 3.6%Dose: 47 mgEvidence strength: Established nutrient — only a token dose in this product

MagnesiumImproves sleep quality and muscle recovery

Research: Established essential nutrientDaily Value: 60%Dose: 250 mgEvidence strength: Established nutrient — this product provides a meaningful dose

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This summary describes only the ingredients and the research behind them — it is not a judgment of the product or its marketing. Grades reflect the weight of published evidence cross-referenced against 350M+ research papers. How we grade →

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