Health Experts Issue New Warning About Magnesium Supplements — Especially for These Two High-Risk Groups (Page 2 ) | November 21, 2025
Who Is at Risk?
According to recent medical guidance, two groups should be especially careful when taking magnesium supplements:
- People With Kidney Problems
The kidneys play a crucial role in regulating magnesium levels in the body. For individuals with chronic kidney disease or reduced kidney function, excess magnesium from supplements can accumulate, potentially leading to dangerous conditions such as irregular heartbeat, low blood pressure, or even severe complications requiring hospitalization. - Individuals Taking Certain Medications
Magnesium supplements can interfere with the absorption or effectiveness of some prescription drugs. Common examples include certain antibiotics, diuretics, and medications for heart disease. This interaction may reduce the medication’s benefits or amplify magnesium’s effects, increasing the risk of side effects like nausea, diarrhea, or irregular heart rhythms.
General Safety Tips
For those not in high-risk categories, magnesium supplements are generally considered safe when taken within recommended limits. Experts advise:
- Check Dosage: Most adults need 310–420 mg of magnesium per day, which is usually attainable through diet. Supplements should not exceed recommended daily limits without medical supervision.
- Monitor Symptoms: Signs of too much magnesium include diarrhea, nausea, abdominal cramping, and irregular heartbeat.
- Consult a Healthcare Provider: Before starting any new supplement, especially if you have chronic health conditions or take medications.
