Side Effects of Magnesium Pills
Magnesium pills are a type of nutritional supplement used to increase magnesium levels in people who do not have enough of this substance in their bodies. Foods rich in magnesium include nuts, whole grains, tofu and green leafy vegetables. While most people do not get as much magnesium as they should from their diets, a magnesium deficiency is rare, according to the University of Maryland Medical Center website. However, those with medical conditions such as irritable bowel syndrome and ulcerative colitis, diabetes, pancreatitis and hyperthyroidism can develop a deficiency. An intestinal virus can cause a temporary deficiency. Symptoms of a magnesium deficiency include anxiety, sleep disorders, irritability, restless leg syndrome, nausea, vomiting, abnormal heart rhythms and low blood pressure. Check with your healthcare provider before taking magnesium supplements.
While taking magnesium pills, you may develop diarrhea, the Office of Dietary Supplements reports. Frequent bowel movement urges may be uncomfortable and may occur in conjunction with nausea, vomiting or abdominal gas, pain or cramping. If you notice blood in your stools, which may cause your stools to appear unusually black or tar-like, seek prompt medical care. Bloody stools may indicate a severe reaction to magnesium pills.
- While taking magnesium pills, you may develop diarrhea, the Office of Dietary Supplements reports.
- Bloody stools may indicate a severe reaction to magnesium pills.
Diarrhea & Dizziness With Magnesium Overdose
Treatment with this nutritional supplement may cause you to develop abnormally slow reflexes, Drugs.com warns. Loss of normal reflexes may also be accompanied by muscle weakness or difficulty moving about normally. Such side effects are serious and require prompt attention from a medical provider.
Ingesting unusually high doses of magnesium may cause you to develop symptoms of overdose. Overdose complications are more common in people who have poor kidney function due to kidney damage or disease. Magnesium overdose symptoms include severe drowsiness, difficulty breathing, diminished heart rate, stomach upset, weakness, dizziness, loss of consciousness, blurred vision or coma. If you suspect that you or a loved one has overdosed on magnesium pills, seek immediate emergency medical care.
- Ingesting unusually high doses of magnesium may cause you to develop symptoms of overdose.
Diarrhea & Dizziness With Magnesium Overdose
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Side Effects of Magnesium on Kidneys
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- Drugs.com: Magnesium Side Effects - Magnesium
- University of Maryland Medical Center: Magnesium
- Rodríguez-Morán M, Guerrero-Romero F. Oral Magnesium Supplementation Improves Insulin Sensitivity and Metabolic Control in Type 2 Diabetic Subjects: A randomized double-blind controlled trial. Diabetes Care.2003 Apr;26(4):1147-52. doi:10.2337/diacare.26.4.1147
- Office of Dietary Supplements/National Institutes of Health. Magnesium: Fact Sheet for Health Professionals. Bethesda, Maryland; updated July 11, 2019.
- Kass LS, Poeira F. The effect of acute vs chronic magnesium supplementation on exercise and recovery on resistance exercise, blood pressure and total peripheral resistance on normotensive adults. J Int Soc Sports Nut. 2015;12:19. doi:10.1186/s12970-015-0081-z
- Morais JBS, Severo JS, de Alencar GRR, et al. Effect of magnesium supplementation on insulin resistance in humans: A systematic review. Nutrition. 2017 Jun;38:54-60. doi:10.1016/j.nut.2017.01.009
- Rosanoff A, Weaver CM, Rude RK. Suboptimal magnesium status in the United States: are the health consequences underestimated? Nutr Rev. 2012 Mar;70(3):153-64. doi:10.1111/j.1753-4887.2011.00465.x
- Zhang X, Li Y, Del Gobbo LC, et al. Effects of Magnesium Supplementation on Blood Pressure: A Meta-Analysis of Randomized Double-Blind Placebo-Controlled Trials. Hypertension. 2016;68:324-33. doi:10.1161/HYPERTENSIONAHA.116.07664
Rae Uddin has worked as a freelance writer and editor since 2004. She specializes in scientific journalism and medical and technical writing. Her work has appeared in various online publications. Uddin earned her Master of Science in integrated biomedical sciences with an emphasis in molecular and cellular biochemistry from the University of Kentucky College of Medicine.