Heart

• Magnesium malate is contraindicated for those with heart problems. It is the magnesium that can cause problems with the heart.
  
  

Diarrhea

• Diarrhea has been associated with magnesium malate. To correct the diarrhea temporarily discontinue use.
  
  

Kidneys

• Magnesium malate should not be taken is any history of kidney damage or problems. This also includes a history of kidney stones.
  
  

Bloating or Cramping

• The best treatment for the bloating and cramping is to discontinue use. The doctor may or may not decide to try the magnesium malate again after the symptoms have cleared up.
  
  

Mental Clarity

• The mental clarity is due to the magnesium. Although, too much magnesium can cloud thoughts.