The Claim
Severe dietary magnesium deficiency (15-30 mg/kg diet for 6 weeks) in mice causes reversible diastolic cardiomyopathy, as evidenced by impaired left ventricular relaxation indicated by an increased E/e' ratio (21.1 vs 15.4 in controls; P=0.011), which normalizes after repletion with a normal magnesium diet for 6 weeks.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Mice that eat a diet with very little magnesium for 6 weeks develop a heart problem where the heart muscle can't relax properly after a beat. This shows up as an abnormal reading on an ultrasound. When they are switched back to a normal diet with magnesium for 6 more weeks, their heart function goes back to normal.
See the scientific wording
In mice, severe dietary magnesium deficiency (15-30 mg/kg diet for 6 weeks) causes a reversible diastolic cardiomyopathy, characterized by impaired left ventricular relaxation as indicated by increased E/e' ratio (21.1 vs 15.4 in controls; P=0.011), which normalizes after repletion with a normal magnesium diet for 6 weeks.
When the body doesn't get enough magnesium, heart cells lose magnesium. This makes the tiny energy factories inside the cells (mitochondria) produce harmful molecules that damage a protein that helps the heart relax. This damage makes the heart stiff and unable to pump blood properly. When magnesium is given again, the damage is repaired and the heart works normally.
What the research says
1 studyStudy: Magnesium Deficiency Causes a Reversible, Metabolic, Diastolic Cardiomyopathy
The study fed mice a diet low in magnesium and found their hearts had trouble relaxing, but when they gave them magnesium again, the hearts went back to normal.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.