magnesium carbonate
noun
: a carbonate of magnesium
especially
: a white crystalline salt MgCO3 that occurs naturally as dolomite and magnesite
Examples of magnesium carbonate in a Sentence
Recent Examples on the Web
For the darkroom acids, the home remedies included magnesium carbonate or pounded chalk dissolved in water.
—
Anika Burgess
july 17, Literary Hub, 17 July 2025
The limits are: Birth to 12 months: Refer to your healthcare provider
1-3 years: 65 milligrams (mg) per day
4-8 years: 110 mg
9+ years: 350 mg
Taking more than the upper limit can increase the risk of side effects, and are more common with magnesium carbonate, chloride, gluconate, and oxide.
—Ashley Wong, Health, 27 May 2025
Magnesium forms commonly reported to cause diarrhea include magnesium carbonate, chloride, oxide, and gluconate.
—Alex Yampolsky, Health, 7 Apr. 2025
Kaolin, papain, tapioca starch, and magnesium carbonate are also featured to amplify these purifying effects.
—Kiana Murden, Vogue, 16 Dec. 2024
Airborne features magnesium in the forms of magnesium oxide and magnesium sulfate, while Emergen-C uses magnesium hydroxide and magnesium carbonate.
—Megan Nunn, Verywell Health, 10 Oct. 2024
In fact, magnesium carbonate is a common ingredient alongside calcium in antacid supplements to help calm stomach acid and alleviate heartburn.
—Casey Seiden, Parents, 24 Feb. 2024
Each teaspoon serving provides 350 mg of a blend of magnesium carbonate and chelate—85% Daily Value for magnesium.
—Willow Jarosh, Ms, Rd, Health, 27 June 2023
While both the carbonate and chelated forms of magnesium can boost your magnesium level, note that magnesium carbonate may have a laxative effect.
—Willow Jarosh, Ms, Rd, Health, 27 June 2023
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Anika Burgess
july 17, Literary Hub, 17 July 2025
The limits are: Birth to 12 months: Refer to your healthcare provider
1-3 years: 65 milligrams (mg) per day
4-8 years: 110 mg
9+ years: 350 mg
Taking more than the upper limit can increase the risk of side effects, and are more common with magnesium carbonate, chloride, gluconate, and oxide.
—Ashley Wong, Health, 27 May 2025
Magnesium forms commonly reported to cause diarrhea include magnesium carbonate, chloride, oxide, and gluconate.
—Alex Yampolsky, Health, 7 Apr. 2025
Kaolin, papain, tapioca starch, and magnesium carbonate are also featured to amplify these purifying effects.
—Kiana Murden, Vogue, 16 Dec. 2024
Airborne features magnesium in the forms of magnesium oxide and magnesium sulfate, while Emergen-C uses magnesium hydroxide and magnesium carbonate.
—Megan Nunn, Verywell Health, 10 Oct. 2024
In fact, magnesium carbonate is a common ingredient alongside calcium in antacid supplements to help calm stomach acid and alleviate heartburn.
—Casey Seiden, Parents, 24 Feb. 2024
Each teaspoon serving provides 350 mg of a blend of magnesium carbonate and chelate—85% Daily Value for magnesium.
—Willow Jarosh, Ms, Rd, Health, 27 June 2023
While both the carbonate and chelated forms of magnesium can boost your magnesium level, note that magnesium carbonate may have a laxative effect.
—Willow Jarosh, Ms, Rd, Health, 27 June 2023
Cite this Entry
“Magnesium carbonate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium%20carbonate. Accessed 24 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share