Too much magnesium from food does not pose a health risk in healthy individuals because the kidneys eliminate excess amounts in the urine [29]. However, high doses of magnesium from dietary supplements or medications often result in diarrhea that can be accompanied by nausea and abdominal cramping [1].
Your kidneys filter most of the magnesium in your blood. A small amount of this mineral comes out in your urine (pee). When your kidneys work well, they can clear out a lot of magnesium.
Hydration helps flush excess magnesium, but severe cases require hospital treatment such as intravenous calcium or dialysis. Avoid self-treatment and contact a healthcare provider or emergency services if symptoms worsen or include breathing difficulties, chest pain, or severe weakness.
This is because when you have kidney problems, your body might not be able to get rid of magnesium as well. As a result, magnesium can build up in the blood and cause dangerous side effects, like dizziness, low energy, nausea vomiting, and muscle weakness.
Key Takeaways. Magnesium stays in your system for about 1 to 2 days, depending on the type and how your body absorbs it. Forms like magnesium citrate and glycinate are absorbed better than forms like magnesium oxide.
Taking amounts of 5,000 mg per day can result in magnesium toxicity. 1 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.
In areas with high mineral water content, increased magnesium consumption has been shown to have positive effects on health. Similarly, soft water sources have been shown to reduce magnesium intake, and in some cases may contribute to magnesium deficiency.
Very high doses of magnesium can lead to magnesium toxicity, which can cause hypotension, vomiting, difficulty breathing, irregular heartbeat, cardiac arrest, and other signs and symptoms.
Supplements that might cause dizziness or vertigo
Magnesium supplements can cause nausea, stomach pain, and diarrhea. Additionally, this mineral often cause softening of stool. Magnesium interactions: Magnesium may not be safe for individuals taking diuretics, heart medications, or antibiotics.
Zinc. Zinc is a vital mineral for immune function and wound healing. However, high doses of zinc taken simultaneously with magnesium glycinate can affect the absorption of magnesium. It is advisable to take these supplements at different times of the day to maximize their benefits.
A magnesium deficiency specifically is a commonly overlooked cause. Without sufficient magnesium, the brain struggles to perform critical functions, leading to the mental fatigue we often label as brain fog.
Caffeine, found in coffee, tea, and certain energy drinks, is a mild diuretic. This means it can increase magnesium loss through urine, slightly reducing the amount available to the body. Consuming caffeine-rich beverages along with magnesium supplements may therefore diminish the supplement's effectiveness.
4. Calcium gluconate: the antidote for magnesium toxicity is calcium gluconate 1 g IV over 3 minutes. Repeat doses may be necessary. Calcium chloride can also be used in lieu of calcium gluconate.
Magnesium affects the flow of electrical activity throughout your heart. When you have low magnesium, this flow is disrupted and causes electrical instability in the heart. It makes your heart speed up, which results in heart palpitations (the feeling like your heart is racing or pounding).
Benign Paroxysmal Positional Vertigo (BPPV) has been linked with low vitamin D levels for many years. While BPPV typically occurs without a known cause, decreased levels of vitamin D in the blood has been associated with increased recurrence of BPPV (1).
Taking too much vitamin D leads to calcium buildup (hypercalcemia), causing physical signs like nausea/vomiting, fatigue/weakness, frequent urination & excessive thirst, constipation, and confusion/disorientation, alongside potential bone pain or kidney stones, often from supplements, not sun exposure.
Mild hypermagnesemia (less than 7 mg/dL) - Asymptomatic or paucisymptomatic: weakness, nausea, dizziness, and confusion. Moderate hypermagnesemia (7 to 12 mg/dL) - Decreased reflexes, worsening of the confusional state and sleepiness, bladder paralysis, flushing, headache, and constipation.
Large doses might cause too much magnesium to build up in the body, causing serious side effects including an irregular heartbeat, low blood pressure, confusion, slowed breathing, coma, and death.
Visual symptoms were common during intravenous magnesium sulfate administration. Blurred vision was present in 12 of 13 patients and diplopia was present in 10 of 13 patients. Abnormal findings during neuroophthalmologic examination occurred in all patients during intravenous magnesium sulfate administration.
Infusing your water with fruits and vegetables also has some added nutritional benefits: Vitamin C boost from citrus fruits like lemons, limes, oranges and grapefruit. Digestive support from fresh ginger and mint.
If you're healthy, your kidneys flush out the extra magnesium you get from foods. Still, too much of it can bring on cramps or nausea. The same is true if you use laxatives or antacids that have magnesium.