Ingredient

Magnesium Hydroxide

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Source

Not animal-derived

Allergen

Role in food

Magnesium hydroxide is used as an antacid to neutralize stomach acid and as a …

What it is

Magnesium hydroxide is a mineral compound that occurs naturally as the mineral brucite. Industrially, it is produced by reacting magnesium salts with sodium hydroxide or by treating seawater with calcium hydroxide. It appears as a white powder or crystals.

Why it's used

Magnesium hydroxide is used as an antacid to neutralize stomach acid and as a laxative. In food, it is primarily used as a nutrient supplement to increase magnesium content and as an acidity regulator to control pH levels. It can be found in dietary supplements and some fortified foods.

Health notes

In the U.S., magnesium hydroxide is generally recognized as safe (GRAS) by the FDA for use as a nutrient supplement and an acidity regulator. It is also approved for use as an active ingredient in over-the-counter antacid and laxative drug products. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated magnesium hydroxide and established an acceptable daily intake. High doses can cause diarrhea, which is its intended effect when used as a laxative.

Allergen info

Magnesium hydroxide is not derived from any of the nine FDA major allergens. It does not contain gluten.

Products containing Magnesium Hydroxide

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Abbott Laboratories Inc Muscle Health, Milk Chocolate Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 3125kcal 188Protein 100Fat 388Carbs Abbott Laboratories Inc Therapeutic Nutrition, Strawberry Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 3125kcal 188Protein 100Fat 375Carbs Abbott Laboratories Inc Muscle Health Has Nutrivigor, Strawberry Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 3125kcal 188Protein 100Fat 375Carbs Abbott Laboratories Inc Advanced Nutrition Shake, Vanilla Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 4375kcal 250Protein 138Fat 550Carbs

Abbott Laboratories Inc Advanced Therapeutic Nutrition For Muscle Health, Milk Chocolate Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 4375kcal 250Protein 138Fat 562Carbs Abbott Laboratories Inc Vanilla Flavor Nutrition Shake, Vanilla Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 3125kcal 188Protein 100Fat 375Carbs

Nestle USA Inc. Strawberry Sensation Flavored Complete Nutritional Drink, Strawberry Sensation Breakfast Drinks 361kcal 13.9Protein 0Fat 75Carbs

Nestle USA Inc. Classic French Vanilla Flavored Nutritional Drink, Classic French Vanilla Powdered Drinks 361kcal 13.9Protein 0Fat 75Carbs

Nestle USA Inc. Rich Milk Chocolate Flavored Complete Nutritional Drink, Rich Milk Chocolate Breakfast Drinks 361kcal 13.9Protein 1.4Fat 75Carbs Kingston Marketing Co Florida Style Key Lime Pie, Florida Style Key Lime Other Frozen Desserts High in saturated fat — 40% DV per serving 300kcal 4.5Protein 11.8Fat 45.5Carbs Abbott Laboratories Inc Advanced Nutrition Shake, Strawberry Energy, Protein & Muscle Recovery Drinks High in added sugars — 40% DV per serving 148kcal 8.4Protein 4.6Fat 18.6Carbs

Abbott Laboratories Inc Advanced Nutrition Shake, Milk Chocolate Energy, Protein & Muscle Recovery Drinks High in sodium — 313% DV per serving High in saturated fat — 225% DV per serving High in cholesterol — 100% DV per serving 4375kcal 250Protein 138Fat 562Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.