The answer is, there is no link between magnesium and frequent urination or having to pee more. Now magnesium can help with water retention. So, if you find that when you take magnesium you pee more, it's most likely because your body is actually holding extra water.
Magnesium homeostasis is essentially regulated by a process of filtration–reabsorption in the kidney. Urinary Mg excretion increases when Mg intake is in excess, whereas the kidney conserves Mg in the case of Mg deprivation. Usually, 1000 mmol per 24 h of Mg is filtered and only 3 mmol per 24 h is excreted in urine.
Hypermagnesemia can be serious and potentially fatal. Lethargy, drowsiness, hypotension, nausea, vomiting, facial flushing, urinary retention, and ileus may be the initial symptoms observed when the serum Mg+2 level exceeds 4–6 mg/dl.
The calcium antagonistic effect of magnesium is also important for reducing the risk of kidney stones, and silent kidney stones significantly increase the risk of kidney failure. As low magnesium intake will reduce the urinary magnesium concentration, the beneficial effect of magnesium on stone formation is hampered.
The Bottom Line on Supplements for Nocturia
Among women, melatonin, cranberry, D-mannose and a specific product called AZO Bladder Control with Go Less, might improve nocturia caused by conditions such as overactive bladder or UTIs. Supplementing with vitamin D or probiotics is not known to help.
High doses of magnesium from supplements or medications can cause nausea, abdominal cramping and diarrhea. In addition, the magnesium in supplements can interact with some types of antibiotics and other medicines.
From animal experiments, it is well known that feeding a severely magnesium-deficient diet will induce a pro-inflammatory and pro-oxidative state leading to tissue injury. It is also known from these experiments that magnesium deficiency induces calcification of the kidney.
Side Effects and Risks of Magnesium Supplements. Diarrhea is the most common side effect of taking magnesium supplements. This can lead to: Dehydration.
Some of the serious side effects of Magnesium Citrate are:
Painful or difficult while urination.
The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination.
Early signs of excessive magnesium intake can include low blood pressure, facial flushing, depression, urine retention, and fatigue. Eventually, if untreated, these symptoms can worsen and include muscle weakness, difficulty breathing, irregular heartbeat, and even, in very rare cases, cardiac arrest.
Cardiopulmonary Arrest is a Risk in Overdose
The overall tolerability profile of magnesium sulfate is well established and maternal adverse effects include flushing, increased warmth, headaches, blurred vision, nausea, nystagmus, lethargy, hypothermia, urinary retention and faecal impaction.
Magnesium sulfate causes respiratory depression as a result of its impact on the central nervous system. A slower respiratory rate can contribute to hypercapnia and hypoxemia. Magnesium sulfate increases incidence of hypotension leading to decreased cardiac and urine output.
Magnesium deficiency is commonly associated with liver diseases, and may result from low nutrient uptake, greater urinary secretion, low serum albumin concentration, or hormone inactivation.
The benefits of magnesium supplementation in healthy individuals aren't clear, but Dr. Nassar says that taking a magnesium supplement every day likely isn't unsafe for most people. Just be sure you're not taking too much magnesium. The maximum dietary allowance for most adults is around 400 mg or less.
How long does it take to work? Magnesium citrate usually takes 30 minutes to 6 hours to stimulate a bowel movement. It's the same with magnesium sulfate and hydroxide. If you don't notice a bowel movement in this time frame — and you've tried other ways to make pooping easier — speak with a doctor.
Magnesium supplements can cause excessive accumulation of magnesium in the blood, especially with patients who have chronic kidney disease. Accumulation of magnesium in the blood can cause muscle weakness, but does not damage the kidney directly.
Every organ in the body, especially the heart, muscles, and kidneys, needs the mineral magnesium. It also contributes to the makeup of teeth and bones. Magnesium is needed for many functions in the body. This includes the physical and chemical processes in the body that convert or use energy (metabolism).
People with diabetes, intestinal disease, heart disease or kidney disease should not take magnesium before speaking with their health care provider. Overdose. Signs of a magnesium overdose can include nausea, diarrhea, low blood pressure, muscle weakness, and fatigue. At very high doses, magnesium can be fatal.
Some products that may interact with this drug are: cellulose sodium phosphate, digoxin, sodium polystyrene sulfonate. Magnesium can bind with certain medications, preventing their full absorption.
One study. View Source of older adults with insomnia found that magnesium supplementation at a dose of 500 milligrams daily for eight weeks helped them fall asleep fast, stay asleep longer, reduced nighttime awakenings, and increased their levels of naturally circulating melatonin.