Ingredient

3-hydroxy Butyric Acid Magnesium Monohydrate

Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add this ingredient to provide a source of ketone bodies, often marketed for …

What is 3-hydroxy Butyric Acid Magnesium Monohydrate?

3-hydroxy butyric acid magnesium monohydrate is a form of ketone bodies, which are molecules the body produces when it breaks down fat for energy. It is synthesized from butyric acid, a short-chain fatty acid, and magnesium. The compound is then crystallized with water.

Is 3-hydroxy Butyric Acid Magnesium Monohydrate vegan?

3-hydroxy Butyric Acid Magnesium Monohydrate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.

Is 3-hydroxy Butyric Acid Magnesium Monohydrate gluten-free?

It is not derived from any of the nine major allergens and does not contain gluten.

Is 3-hydroxy Butyric Acid Magnesium Monohydrate a major allergen?

Not a major allergen.

What is 3-hydroxy Butyric Acid Magnesium Monohydrate used for?

Manufacturers add this ingredient to provide a source of ketone bodies, often marketed for ketogenic or low-carbohydrate diets.

Is 3-hydroxy Butyric Acid Magnesium Monohydrate safe?

In the U.S., 3-hydroxy butyric acid magnesium monohydrate is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

Manufacturers add this ingredient to provide a source of ketone bodies, often marketed for ketogenic or low-carbohydrate diets. It is found in products like meal bars, snacks, and chips that aim to support energy levels or specific dietary goals.

Health notes

In the U.S., 3-hydroxy butyric acid magnesium monohydrate is generally recognized as safe (GRAS) by the FDA for use in food. Ketone bodies are a natural energy source for the body, and supplemental forms are used to increase blood ketone levels. Regulatory bodies like JECFA and EFSA have evaluated ketone esters and salts, but specific evaluations for this exact compound may vary. Evidence on the long-term health effects of consuming supplemental ketone bodies is still developing.

Allergen info

Not a major allergen. It is not derived from any of the nine major allergens and does not contain gluten.

Foods that contain 3-hydroxy Butyric Acid Magnesium Monohydrate

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Last updated: October 5, 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.