Comparing E530 - Magnesium oxide vs E528 - Magnesium hydroxide

Synonyms
E530
Magnesium oxide
magnesia
E528
Magnesium hydroxide
Products

Found in 40 products

Found in 8 products

Search rank & volume
#1797.1K / mo🇺🇸U.S.
#8826K / mo🇺🇸U.S.
Awareness score

×315.30
over-aware

×292.76
over-aware

Search volume over time

Interest over time for 2 keywords in U.S. during the last 10 years.

Interest over time for 2 keywords in U.S. during the last 10 years.

Popular questions
  1. What is magnesium oxide good for?

    In foods, E530 is good for keeping powders free‑flowing (anti‑caking) and helping control acidity/alkalinity (pH); it may also serve as a source of magnesium in fortification.

  2. What is magnesium oxide used for?

    As a food additive it’s used in products like table salt, spices, cocoa, and drink or baking mixes to prevent clumping and to adjust pH; it can also supply magnesium in some fortified foods.

  3. What is magnesium oxide 400 mg used for?

    That tablet dose is a dietary supplement, not a food‑additive use; 400 mg MgO provides about 240 mg elemental magnesium and is used to address low magnesium or as an antacid/laxative, though it’s relatively poorly absorbed and can cause diarrhea at high doses.

  4. Is magnesium oxide good for you?

    At the small amounts used in foods, it’s considered safe (permitted in the EU as E530 and GRAS in the U.S.); as a supplement it can help correct deficiency but has lower bioavailability than some forms and high doses may upset the stomach or cause diarrhea.

  5. What does magnesium oxide do?

    In foods it prevents caking and helps stabilize pH, and can contribute magnesium for fortification.

  1. How magnesium hydroxide works?

    It works as a sparingly soluble base that releases hydroxide ions to neutralize acids and raise pH. In medicinal use it neutralizes gastric acid and, at higher doses, draws water into the intestines to promote bowel movements.

  2. Is magnesium hydroxide safe?

    Yes—at permitted food-use levels (E528) it is considered safe by regulators. High intakes can cause diarrhea, and people with kidney impairment should avoid excessive magnesium exposure.

  3. Is magnesium hydroxide a strong base?

    Chemically it’s a strong base, but its very low solubility means its aqueous solutions are only moderately alkaline compared with highly soluble bases like sodium hydroxide.

  4. What is magnesium hydroxide used for?

    In foods it’s used as an acidity regulator/alkalizing agent and processing aid to control pH. Outside foods it’s the active ingredient in some antacids (milk of magnesia) and osmotic laxatives.

  5. What does magnesium hydroxide do?

    In food products it neutralizes excess acidity and helps stabilize pH. Medically it relieves heartburn by neutralizing stomach acid and, at higher doses, promotes bowel movements by drawing water into the gut.