Magnesium may not be as available if have low stomach acid (seniors)

Update Jan 2020: Magnesium <==>Stomach Acid

Increasing Magnesium increases Stomach Acid
Increased Stomach Acid increases Magnesium absorption

Update May 2016 - Magnesium CHLORIDE probably increases stomach acid

Investigation of Magnesium and Calcium Carbonate and Oxide supplements
All 4 of which serve as antacids. – so they decrease an already low stomach acid in seniors

Clipped from the web – July 2013

http://www.webmd.com/osteoporosis/features/calcium-supplements-pills

Some people's bodies may have problems making enough stomach acid, or may be taking medications that suppress acid production.

WikiPedia

In medicine, magnesium oxide is used for relief of heartburn and sore stomach, as an antacid, magnesium supplement, and as a short-term laxative. I

http://curezone.com/forums/am.asp?i=1813356

Magnesium oxide cannot absorb as magnesium oxide. Instead, as with most minerals, the magnesium has to react with an acid turning it into an absorbable salt. Problem is that many people lack sufficient levels of stomach acid as levels drop with age and there is a major overuse of antacids, acid blockers (proton pump inhibitors), carbonates and oxides in supplements and alkaline waters all of which further reduce stomach acid reducing mineral absorption.

In the case of magnesium oxide, when this is combined with water it forms the highly alkaline and caustic magnesium hydroxide. This not only neutralizes stomach acid inhibiting magnesium absorption, but it also burns the intestinal wall due to its caustic nature. This is why magnesium hydroxide is used as a laxative such as Milk of Magnesia.

http://www.ancient-minerals.com/magnesium-sources/absorption/?gclid=CNjY5-KYrbgCFa9cQgodhXQA3Q

Some conditions known to impact magnesium availability include:
Individual variations in the amount of stomach acid, commonly reduced in older adults
Excessive use of alcohol
Crohn’s disease, celiac sprue, and any disorder of the digestive or intestinal function
Kidney disorders
Genetic magnesium absorption disorders
Stress, surgery, and chronic disorders such as diabetes
Diarrhea and vomiting

http://ods.od.nih.gov/factsheets/Magnesium-HealthProfessional/ NIH

Older adults are at increased risk for magnesium deficiency. The 1999–2000 and 1988–94 National Health and Nutrition Examination Surveys suggest that older adults have lower dietary intakes of magnesium than younger adults [6,23]. In addition, magnesium absorption decreases and renal excretion of magnesium increases in older adults [4]. Seniors are also more likely to be taking drugs that interact with magnesium. This combination of factors places older adults at risk for magnesium deficiency [4]. It is very important for older adults to get recommended amounts of dietary magnesium.

See also VitaminDWiki

• All items in category Predict Vitamin D 82 items
• Overview Magnesium and vitamin D
• Calcitriol, not inactive vitamin D, associated with pain in seniors – Aug 2014
  • note: low Mg ==> low Calcitriol even though vitamin D level is OK

Magnesium and Vitamin D contains the following highlights

365 items in category, see also

• Overview Magnesium and vitamin D
• Longevity experts take Vitamin D, Omega-3, and Magnesium - Patrick video Sept 2023
• The ONE Supplement All Longevity Experts Are Taking (Magnesium) - video and transcript Dec 2023
• Magnesium deficiency – causes and symptoms – May 2016
• Magnesium Depletion Score predicts increased risk of various health problems
• Vitamins and Metals needed by the Immune System – Jan 2020
• Magnesium: intake decreased, difficult to measure in body – Sept 2018
• Magnesium deficiency estimated by just 6 Yes No questions - Dec 2019
• Magnesium fights diabetes (yet again)– meta-analysis Nov 2021
• Magnesium in Healthcare (Rickets, Stones, Pregnancy, Depression, etc.) with level of evidence – Sept 2017
• Magnesium is great for health, topical much faster than oral, MgCl2 is the best – 2019
• Magnesium is important for health but levels are low – July 2018
• How to get lots of Magnesium – especially needed for Coimbra MS and Autoimmune Protocol
• Magnesium etc. reduced in crops (must supplement) – 2009

Mg and Vitamin D

• Intracellular Magnesium and Vitamin D - a few studies
• Vitamin D and Magnesium need each other - many studies
• Why Vitamin D is Useless without This Critical Nutrient (Magnesium) - Jan 2019
• 500 mg of Magnesium for 8 weeks increased Vitamin D by 4 ng – July 2020
• Magnesium and Vitamin D - pre-colon cancer – RCT Dec 2018
• Magnesium is vital to Vitamin D in 4 places (maybe 8) – March 2018
• Magnesium and Vitamin D – recent deficiencies, needed, synergistic - good overview 2017
• Vitamin D Cofactors in a nutshell
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Magnesium topics gathered on a page

• Vitamin D, Omega-3, and Magnesium are synergistic - many studies
• Magnesium and Cancer - many studies
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• Calcium to Magnesium Ratio - many studies
• Magnesium Role in Health and Longevity - many studies
• Magnesium reduces pain - many studies
• Vitamin D and Magnesium need each other - many studies
• Pregnancy helped by Magnesium - many studies