High doses of magnesium glycinate may cause diarrhea, gas, or stomach pain. Very high or long-term use can lead to magnesium toxicity. People with kidney or heart disease, or certain neuromuscular ...

Taking too much magnesium can cause side effects like diarrhea and stomach pain. Very high doses of magnesium can lead to magnesium toxicity, which may cause severe complications. You have a higher ...

Too much magnesium may cause diarrhea and abdominal cramps. In severe cases, it can lead to difficulty breathing, irregular heartbeat, and death. Severe magnesium toxicity is not all that common.