Diseases like Crohn's, celiac disease, type 2 diabetes, chronic alcoholism, and kidney disorders deplete magnesium by causing poor absorption, increased urinary loss, or gastrointestinal issues, while also affecting magnesium regulation and increasing the need for it. Conditions leading to prolonged diarrhea, vomiting, or malabsorption are major culprits, as are metabolic issues that cause excess magnesium excretion, like diabetes.
Usually, the magnesium level becomes low because people consume less (most often, because of starvation) or because the intestine cannot absorb nutrients normally (called malabsorption). But sometimes hypomagnesemia develops because the kidneys or intestine excrete too much magnesium.
Excess magnesium may cause headaches or dizziness in some individuals. High magnesium intake, especially from supplements, can lead to symptoms like head pressure or mild headaches due to its effect on blood vessels and nerve function. It is important to monitor dosage and avoid exceeding recommended daily amounts.
For acute deficiency symptoms, such as muscle and leg cramps, supplementation should be continued even after the symptoms have subsided. This is because, depending on the severity of the deficiency, it can take several weeks to replenish magnesium stores.
Magnesium intake during pregnancy
The problem arises when there is a magnesium deficiency, caused by an insufficient intake in the diet or an excessive loss that the body cannot compensate, due to intense sweating or vomiting caused by prolonged nausea during pregnancy.
To promote optimal absorption, it's important to be mindful of what you eat and drink alongside magnesium supplements. Foods and drinks high in fiber, phytic acid, phosphoric acid, alcohol, and caffeine can interfere with how well your body uses magnesium.
Gitelman's syndrome (GS) is a renal disorder that can cause exacerbation of electrolyte disturbances in pregnancy. Most patients have good obstetric and neonatal outcome despite ongoing hypokalaemia and hypomagnesaemia. Most patients with GS need magnesium and potassium supplementation in pregnancy.
Ten common signs of low magnesium include fatigue, muscle cramps/twitches, loss of appetite, nausea, weakness, abnormal heart rhythms, numbness/tingling, headaches, anxiety/irritability, and insomnia, with more severe deficiency potentially causing seizures or high blood pressure. These symptoms often start subtly and worsen, affecting both physical and mental health.
Culprit medications linked to hypomagnesemia include antibiotics (e.g. aminoglycosides, amphotericin B), diuretics, antineoplastic drugs (cisplatin and cetuximab), calcineurin inhibitors, and proton pump inhibitors.
Mg is essential in the metabolism of vitamin D, and taking large doses of vitamin D can induce severe depletion of Mg. Adequate magnesium supplementation should be considered as an important aspect of vitamin D therapy.
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.
Certain medications should not be taken with magnesium, including certain antibiotics, PPI drugs, diuretics, bisphosphonates, and high doses of zinc. If you take any of these medications and might need to supplement your diet with magnesium, speak to your healthcare provider.
Magnesium is a natural muscular tissue depressant, so it should not create any discomfort. There are instances where people were feeling pain or tightness in their joints or muscles while taking magnesium, but these are rare when it comes to magnesium and joint pain.
Common causes of low magnesium include: Alcohol use. Burns that affect a large area of the body. Chronic diarrhea.
In case of magnesium deficiency, the pyloric sphincter fails to relax as often as it should, which impairs gastric emptying. When the food remains in the stomach for a longer time, it creates pressure on the LES, causing it to open upwards and thereby causing acid reflux.
Groups at Risk of Magnesium Inadequacy
Certain groups of people are more likely than others to have magnesium inadequacy. These include people with gastrointestinal diseases, type 2 diabetes, or alcohol dependence and older adults.
Certain medications, drugs, and substances can make some people at higher risk for magnesium deficiency. This includes people who consume alcohol or caffeine or those who take proton pump inhibitors (ex. Prilosec, Zantac, Prevacid), antacids, high-dose calcium supplements, and some antibiotics.
Thiazide-like diuretics cause an increased excretion of magnesium in the urine. Low serum and selected tissue magnesium levels have been reported among diuretic users. Low magnesium levels have been associated with cardiac arrhythmias, neuromuscular changes, and increases in lipoprotein levels.
Most case reports of hypomagnesaemia have been associated with long-term use of omeprazole at normal doses (20 - 40mg per day); magnesium levels normalised after stopping treatment.
Your body needs magnesium to function normally. Symptoms of magnesium deficiency include low appetite, nausea or vomiting, muscle spasms or tremors and abnormal heart rhythms. A blood test or urine test can be used to diagnose magnesium deficiency.
For drinks high in magnesium, opt for mineral waters, fruit juices (especially orange, cherry, watermelon), plant-based milks (soy, almond), and homemade concoctions using raw cacao, coconut milk, or magnesium powders mixed with water or smoothies, with hot chocolate (made with raw cacao) and herbal teas (like nettle) also being good choices.
Since magnesium plays a role in neuromuscular transmission and muscle contraction, it has been hypothesised that magnesium deficiency may predispose to muscle cramps. Thus magnesium supplements are often recommended to prevent cramps.
Causes include inadequate magnesium intake and absorption or increased excretion due to hypercalcemia or medications such as furosemide. Clinical features are often due to accompanying hypokalemia and hypocalcemia and include lethargy, tremor, tetany, seizures, and arrhythmias.
Bartter's syndrome (BS) is a rare autosomal recessive inherited renal tubular disorder characterized by severe hypokalemia, metabolic alkalosis, hyperaldosteronism and normal blood pressure. Because of its rarity, reports on pregnancy associated to this disease are scant, and maternal and fetal risks are still unknown.
HELLP syndrome (Hemolysis, Elevated Liver enzyme levels, and Low Platelet levels) is a serious health condition that can affect pregnant women. The condition may result in high blood pressure, liver dysfunction, and blood problems, including clotting difficulties.