Magnesium Hydroxide

Generally Safe MineralNatural

Magnesium Hydroxide is a naturally derived mineral used in dietary supplements. Safety rating: Generally Safe. It is generally considered safe for most people at standard doses. Found in 5 supplements in the GoodSupp database. Magnesium hydroxide is an inorganic compound used as a source of magnesium.

5 Products use this
Generally Safe Safety rating
Mineral Category
Yes Natural origin

Safety Verdict: Generally Safe

Can cause diarrhea in high doses.

What is Magnesium Hydroxide?

Magnesium hydroxide is an inorganic compound used as a source of magnesium.

Common Names Magnesium Hydroxide, Milk of Magnesia
Type Mineral
Origin Natural / Plant-derived
Safety Rating Generally Safe

Why is Magnesium Hydroxide used in supplements?

It is used to provide magnesium.

Role in supplements: Mineral compound — provides a specific mineral in a bioavailable form the body can absorb.

Should you be concerned about Magnesium Hydroxide?

Generally no. Magnesium Hydroxide is considered safe for most people at typical supplement doses. Some individuals may want to be aware of minor sensitivities.

Can cause diarrhea in high doses.

Low risk. Generally safe for most people in supplement amounts.

Top-rated products containing Magnesium Hydroxide

These 5 highest-scoring supplements in our database use Magnesium Hydroxide.

Related Ingredients
Frequently Asked Questions
Is Magnesium Hydroxide safe in supplements?

Magnesium Hydroxide is rated generally safe for most people at amounts commonly found in supplements. While the overall safety profile is favorable, some individuals may experience minor sensitivities. Can cause diarrhea in high doses. In GoodSupp's database, 5 products contain this ingredient. Consult your healthcare provider if you have specific concerns.

What is Magnesium Hydroxide and why is it in my supplement?

Magnesium hydroxide is an inorganic compound used as a source of magnesium. It appears in 5 products in the GoodSupp database.

Is Magnesium Hydroxide natural or synthetic?

Magnesium Hydroxide is naturally derived, meaning it comes from natural sources such as plants, minerals, or animal products rather than being chemically synthesized. Natural-origin ingredients are preferred by many consumers, though it's important to note that 'natural' does not automatically mean 'safer' — safety depends on the specific substance, its purity, and the amount used. The safety rating assigned by GoodSupp is based on the ingredient's actual safety profile, not its origin.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.