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What happens if you eat too much magnesium?
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Can you have too much magnesium in your blood?
Mar 11, 2024 · At best, magnesium overdose can cause diarrhea and abdominal cramps, but at worst it could lead to difficulty breathing, irregular heartbeat, and death. Severe magnesium toxicity isn’t all...
- Overview
- The role of magnesium
- Sources of magnesium
- Risk factors
- What happens during a magnesium overdose
- Takeaway
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While rare in a person without certain chronic health conditions, you can overdose on magnesium. Symptoms can include digestive issues and respiratory distress, among others.
Magnesium is a mineral that’s found naturally in many foods and in your body. However, as with most things, there are dangers associated with getting too much.
A magnesium overdose can lead to what is technically known as hypermagnesemia. This is when there’s too much magnesium in your blood. It can occur in people with chronic health conditions, such as chronic kidney disease, although it’s rare.
Magnesium overdose may also result from taking too much of a supplement or medication containing magnesium.
Magnesium serves many functions in the human body. It’s important for:
•protein synthesis
•healthy bone formation
•regulating blood pressure
•maintaining heart health
•energy production
Magnesium is found in a variety of foods, especially those with lots of fiber. Nuts, leafy greens, legumes, and whole grains are among the best sources. Some specific foods that are high in magnesium include:
•almonds
•spinach
•cashews
•peanuts
•wheat cereal or bread
Hypermagnesemia is rare because the kidneys work to get rid of excess magnesium. Overdose with resultant hypermagnesemia is most often seen in people with poor kidney function after they take medications containing magnesium, such as laxatives or antacids.
It’s because of this risk that people with kidney disease are cautioned against taking magnesium supplements or medications that contain this mineral. The associated risks are also higher for people with heart disease and gastrointestinal disorders.
According to the Office of Dietary Supplements, symptoms of magnesium overdose may include:
•diarrhea
•nausea and vomiting
•lethargy
•muscle weakness
•abnormal electrical conduction in the heart
Overall, the risk of ever experiencing a magnesium overdose is extremely low for a typically healthy person. Still, it’s possible to have too much in certain cases.
If you experience adverse symptoms, such as diarrhea, when you take magnesium supplements or medications containing magnesium, you may be taking too much magnesium in these forms. If this is the case, you may need to speak to your doctor for guidance.
For people with impaired kidney function, discuss the risks of magnesium-containing medications and supplements with your doctor to help ensure your safety.
On the other end of the spectrum, you may lose too much magnesium from some serious illnesses, alcohol abuse, or taking certain medications. Low levels of magnesium can lead to issues such as migraine headaches. Learn more about magnesium and migraines.
Magnesium overdose is rare, but it can occur in people with kidney disease or who take too much of a supplement or medication. Symptoms include diarrhea, nausea, muscle weakness, and respiratory distress. Learn more about the role, sources, and risk factors of magnesium.
- Anna Schaefer
Dec 18, 2023 · Taking too many magnesium supplements or medications can cause hypermagnesemia, which can lead to serious health complications. Learn about the signs, causes, and treatments of a magnesium overdose, and why getting enough magnesium from the diet and supplements is important.
- Jayne Leonard
Feb 12, 2024 · Taking amounts of 5,000 mg per day can result in magnesium toxicity. This might happen by taking a very large dose of laxatives or antacids that contain magnesium. Toxicity can produce severe symptoms, including low blood pressure, weakness, difficulty breathing, irregular heartbeat, and death.
- Lana Barhum
Mar 8, 2022 · Learn how to recognize and treat the warning signs of magnesium toxicity, which can cause nausea, cramping, depression, and low blood pressure. Find out which groups are at higher risk and which medications or supplements can interact with magnesium.
May 2, 2022 · Weakness. Trouble Breathing. Confusion. Irregular Heart Beat. Kidney Dysfunction. Hypotension. Magnesium is an essential mineral that helps your body function at its best. But too much magnesium — which can be the case if you take a supplement, for instance — can lead to side effects.
Jul 29, 2022 · Serious cases of magnesium overdose may cause: difficulty breathing. mental confusion. muscle weakness. irregular heartbeats. It can also lead to cardiac arrest. What does magnesium do for the body?
