When Is The Best Time To Take Magnesium Pills

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You can take magnesium supplements one hour before or up to six hours after a meal, according to the University of Maryland Medical Center. However, you should not take them too close to bedtime as they may interfere with sleep and cause diarrhea if taken too late in the day. If you experience any GI symptoms such as nausea, vomiting or diarrhea when taking magnesium pills at night, contact your doctor immediately.