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Ingredient

Magnesium Oxide

Source of

Magnesium

Rating

BAD

Functional benefits

Digestion

At a glance

Very poorly absorbed (~4% absorption rate). Primarily used as a cheap bulking agent rather than for any meaningful magnesium contribution.

Refs: Firoz M et al., 2001

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*SuppScore ingredient ratings are produced by qualified nutritionists based on peer-reviewed research. This content is for informational purposes only and does not constitute medical advice.