Ingredient

As Magnesium Oxide

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Source
Not animal-derived
Allergen
No
Role in food
Magnesium oxide is often added to foods as a nutrient supplement to provide magnesium. …

What it is

Magnesium oxide is a mineral compound made of magnesium and oxygen. It is typically produced by heating magnesium carbonate or magnesium hydroxide, which are naturally occurring minerals. It appears as a white powder.

Why it's used

Magnesium oxide is often added to foods as a nutrient supplement to provide magnesium. It can also function as an acidity regulator, helping to control the pH of food products. It is commonly found in dietary supplements, fortified foods, and some dairy products.

Health notes

In the U.S., magnesium oxide is generally recognized as safe (GRAS) by the FDA when used as a nutrient or for other specified purposes. It is a source of dietary magnesium, which is an essential mineral. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated magnesium oxide. Evidence regarding the health effects of magnesium oxide at typical dietary intake levels is generally consistent with its role as a source of magnesium.

Allergen info

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

Products containing As Magnesium Oxide

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VITAL & DELICIOUS Veggie Sausage With Vitaegg & Veggies & Cheese On Flatbread Frozen Breakfast Sandwiches, Biscuits & Meals High in sodium — 23% DV per serving 136kcal 12.7Protein 2.5Fat 17.8Carbs Giant Eagle, Inc. Heavy Whipping Cream Cream 333kcal 0Protein 33.3Fat 0Carbs Light Coffee Cream, Light Giant Eagle, Inc. Light Coffee Cream, Light Cream 200kcal 0Protein 16.7Fat 6.7Carbs Heavy Whipping Cream Giant Eagle, Inc. Heavy Whipping Cream Cream 333kcal 0Protein 33.3Fat 0Carbs Half & Half Giant Eagle, Inc. Half & Half Cream 117kcal 3.3Protein 10Fat 3.3Carbs Whipping Cream Giant Eagle, Inc. Whipping Cream Cream 300kcal 0Protein 30Fat 6.7Carbs Half & Half Giant Eagle, Inc. Half & Half Cream 117kcal 3.3Protein 10Fat 3.3Carbs Cookies & Cream Protein Powder, Cookies & Cream Glanbia Performance Nutrition, Inc. Cookies & Cream Protein Powder, Cookies & Cream Meal Replacement Supplements 344kcal 82.0Protein 0Fat 0Carbs PreMark Health Science, LLC Vanilla Bean High Protein Plus Meal Replacement Shake, Vanilla Bean Meal Replacement Supplements 368kcal 49.1Protein 6.1Fat 35.1Carbs Chike, High Protein Original Iced Coffe Chike Nutrition LLC Chike, High Protein Original Iced Coffe Powdered Drinks 389kcal 55.6Protein 6.9Fat 25Carbs Isopure Protein Powder Glanbia Performance Nutrition, Inc. Isopure Protein Powder Energy, Protein & Muscle Recovery Drinks 344kcal 82.0Protein 1.6Fat 0Carbs
Magnesium (11 products) Sodium Citrate (7 products) Selenium (5 products) Riboflavin (5 products) Vitamin A (5 products) Biotin (5 products) As Dl-alpha-tocopheryl Acetate (5 products) Vitamin E (5 products) Copper (5 products) Cyanocobalamin (5 products)

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.