PubHawk
Am J Physiol December 1975 PMID 1211491

Effect of calcium on magnesium absorption.

J Behar

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Mentions

14
Peak: 3 in Oct 2025
across 4 sources since Nov 2020

Extended reach

183,298
potential audience

Total likes

2,969

Video views

120,435

Mentions per month

Nov 2020 – Oct 2025

Where it's discussed

  • X / Twitter6 posts
  • News4 articles
  • YouTube2 videos
  • Facebook2 posts

AI synopsis

What people are saying

The overall discussions reveal an interest in how calcium affects magnesium absorption, with posts mentioning practical advice such as taking magnesium separately from calcium or water rich in calcium might hinder absorption. The tone combines curiosity with mild skepticism, especially around supplement efficacy and the accessibility of research, highlighting the relevance of the topic in everyday health contexts.

AgreementModerate agreement

Several posts recognize that calcium’s interference with magnesium absorption is supported by the research, reflecting general agreement with the publication’s findings.

InterestHigh interest

The discussions show a high level of curiosity about the relationship between calcium and magnesium, especially with mentions of supplement efficacy and physiological processes.

EngagementModerate engagement

Some comments reference specific mechanisms, such as calcium making the intestinal membrane less permeable, indicating moderate engagement with the scientific content.

ImpactModerate impact

The mention of practical implications like supplement timing and water composition suggests users see some real-world significance, though not significantly transformative.

Abstract in brief

  • Increasing calcium levels in the intestine decrease magnesium absorption and also reduce sodium absorption, indicating a possible link between these processes.
  • The reduction in magnesium absorption appears to be due to calcium making the intestinal membrane less permeable to solutes, which may affect solvent drag, a process involved in magnesium transport.
  • Higher calcium levels lead to more magnesium accumulation in intestinal tissue, which might involve a different mechanism of transport that is not dependent on water flow, as suggested by changes in sodium absorption and electrical potential.]
Read the full abstract

Top posts

Most liked on X and Bluesky
Kristie Leong M.D.
@DrKristieLeong · X

@TajMadeeha It's interesting that they combine them since calcium interferes with magnesium absorption: https://t.co/WXar0jYM3B

Jan 21, 2023 · 2 likes · 1 share · 60,266 followers View post →
His Devine Shadow
@ESchillup · X

@KelLemonTek @ColbyCanadian @PicturesFoIder Spring water is generally high in dissolved calcium, which hinders magnesium absorption. Generally only 30-40% of magnesium is absorbed, unless you take magnesium oxide which is essentially useless. Take magnesium separate from calcium. https://t.co/pehv91tQc1.

May 15, 2023 · 1 like · 595 followers View post →
Andrew Brooks
@andrewjbrooks1 · X

Effect of Calcium on Magnesium absorption | https://t.co/ashYKtGLfY Only the Abstract is readable for me, to read it fully you're in the Medical field or pay for it. Presumably Tax Payers paid for this study, but alas are not allowed to view it.

Nov 9, 2020 · 726 followers View post →
DR MADEEHA TAJ.
@TajMadeeha · X

RT @DrKristieLeong: @TajMadeeha It's interesting that they combine them since calcium interferes with magnesium absorption: https://t.co/WX…

Jan 21, 2023 · 1 share · 514 followers View post →
leilani unger⏳
@zombieloni · X

These Supplements Spike Cortisol at Night and Keep You Awake (avoid at n... https://t.co/R0LcnRuuHb via @YouTube

Oct 17, 2025 · 455 followers View post →
Rowena's
@the_meat_market · X

Subscribe and watch the full video here: https://t.co/yj76BeNMzK

Oct 18, 2025 · 304 followers View post →

All mentions

Rowena's
@the_meat_market · X

Subscribe and watch the full video here: https://t.co/yj76BeNMzK

Oct 18, 2025 · 304 followers View post →
leilani unger⏳
@zombieloni · X

These Supplements Spike Cortisol at Night and Keep You Awake (avoid at n... https://t.co/R0LcnRuuHb via @YouTube

Oct 17, 2025 · 455 followers View post →
His Devine Shadow
@ESchillup · X

@KelLemonTek @ColbyCanadian @PicturesFoIder Spring water is generally high in dissolved calcium, which hinders magnesium absorption. Generally only 30-40% of magnesium is absorbed, unless you take magnesium oxide which is essentially useless. Take magnesium separate from calcium. https://t.co/pehv91tQc1.

May 15, 2023 · 1 like · 595 followers View post →
DR MADEEHA TAJ.
@TajMadeeha · X

RT @DrKristieLeong: @TajMadeeha It's interesting that they combine them since calcium interferes with magnesium absorption: https://t.co/WX…

Jan 21, 2023 · 1 share · 514 followers View post →
Kristie Leong M.D.
@DrKristieLeong · X

@TajMadeeha It's interesting that they combine them since calcium interferes with magnesium absorption: https://t.co/WXar0jYM3B

Jan 21, 2023 · 2 likes · 1 share · 60,266 followers View post →
Andrew Brooks
@andrewjbrooks1 · X

Effect of Calcium on Magnesium absorption | https://t.co/ashYKtGLfY Only the Abstract is readable for me, to read it fully you're in the Medical field or pay for it. Presumably Tax Payers paid for this study, but alas are not allowed to view it.

Nov 9, 2020 · 726 followers View post →