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Magnesium and Breathing: Muscle Nutrient, Not a Lung Fix
Magnesium is a mineral that helps muscles and nerves work. In hospital emergency care for severe asthma, magnesium given by injection is sometimes used under a doctor's order. That does not show that magnesium pills help breathing at home. Too much can cause diarrhea, and kidney disease raises risk.
Written by the PureLung label deskUpdated · 5 min read
What magnesium does
Magnesium helps hundreds of reactions in the body, including muscle contraction, nerve signals and bone health. Good sources include pumpkin seeds, nuts, beans, whole grains and leafy greens. Many adults eat less than the recommended amount, though true deficiency is uncommon in healthy people (NIH ODS, Dietary Supplements: What You Need To Know).
Why the asthma link
Airways are surrounded by smooth muscle. Magnesium can relax muscle in some settings. In emergency care for severe asthma attacks, intravenous magnesium is sometimes given along with other medicine, under medical supervision. That is a medical treatment, with a set dose and monitoring. It is not the same as swallowing a tablet.
What studies of pills found
Studies of oral magnesium supplements in asthma and COPD are few and small, with mixed results. They do not support using magnesium pills to replace inhalers or a plan with a clinician.
If you or someone else is struggling to breathe, call 911 and follow the asthma action plan. A supplement is not first aid.
Who should be careful
Magnesium leaves the body through the kidneys, so people with kidney disease can build up too much. It can also interact with some antibiotics, bisphosphonates and heart or blood pressure medicines. Ask a pharmacist for the gap between doses.
Side effects
Most side effects of magnesium supplements are in the gut, and they depend on the form and the dose.
- Diarrhea and cramps are the most common, especially with magnesium oxide and citrate.
- Very high doses can cause low blood pressure, an irregular heartbeat and confusion.
- Antacids and laxatives that contain magnesium count toward the total.
PureLung: 60 capsules a bottlePacks of 1, 3 or 6 bottles · live price shown at checkout · guarantee as printed on the live listing
See packsWhat this means for PureLung
Magnesium is not an active ingredient on the panel. The inactive list includes magnesium stearate, a flow aid, which is a different compound and not a source of the nutrient in any meaningful amount. Do not read it as a mineral boost. The same goes for any sentence on a web page that treats the two as the same thing, which is a quick sign that the writer has not read the panel.
What does the PureLung label say?
The label shows 60 capsules, a serving of 2 and a 600 mg Proprietary Blend of eleven names with no single amount; it names no disease.
| Item | As printed |
|---|---|
| Form and count | Capsules, 60 per bottle; serving size 2 capsules; 30 servings |
| Blend per serving | Proprietary Blend, 600 mg: eleven names, no single amount printed |
| Inactive | Rice Flour, Magnesium Stearate, Silica Dioxide |
| Distributor | MJO, Sheridan, WY 82801 |
A practical approach
Aim for magnesium-rich foods first. If you wonder about a supplement, ask a clinician about your diet, kidney function and medicines. Keep your inhalers and plan as prescribed, and see the asthma basics guide for the care that has proof behind it.
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Order 6 bottlesPrices are filled in once the live listing is confirmed. A single bottle is also sold. Check your medicines with your doctor or pharmacist before you order, and keep using every inhaler and prescribed medicine.
FAQ01
PureLung questions people ask
Does magnesium help asthma?
In emergency care, injected magnesium may be used. Pills are not proven.
Is magnesium stearate a mineral supplement?
No. It is a flow aid.
How much magnesium is safe?
The supplement upper limit for adults is 350 mg a day.
Who should avoid it?
People with kidney disease should ask first.
Does it relax lungs?
Not at home in pill form, as far as evidence shows.
Who wrote this02
Written and reviewed by
Pages built from the label images, seller information and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
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