Magnesium is the fourth-most abundant mineral in the body and is essential to good health, according to the Office of Dietary Supplements. Although green vegetables and some legumes provide healthy quantities of magnesium, many people take supplements to reach the recommended daily amount. Supplements are available in chewable tablet, liquid and even oil form.
The chief side effect of magnesium oil is diarrhea and abdominal cramping, according to Drugs.com. Perhaps not surprisingly, many resort to magnesium products to relieve constipation. If you take more than the recommended dosage or are not constipated, diarrhea is more likely.
Excess Magnesium Signs
Signs of excess magnesium are similar to those of a deficiency, according to the Office of Dietary Supplements, and can be very dangerous. Although these symptoms occur when magnesium oil is taken in high doses, they can include a change in mental status, appetite loss, muscle weakness, as well as low blood pressure and irregular heartbeat.
Symptoms such as a rash, hives, and itching indicate you are severely allergic to magnesium. Other allergic reaction symptoms include difficulty breathing and chest tightening, and swelling in your mouth, face, lips or tongue.