Is magnesium oxide toxic and harmful to human body

Magnesium oxide is harmless to human body.
1. Food grade
Application: it is used as food additive, color stabilizer, pH value regulator as supplement of magnesium element in health products and food. It can be used as decoloring agent, ice cream powder and pH regulator in sugar refining. As an anti caking agent and anti acid agent, it can be used in wheat flour, milk powder chocolate, cocoa powder, grape powder, sugar powder and other fields, and can also be used in the manufacture of ceramics, enamel, glass, dyes and other fields.
2. Medical grade
Application: medical grade magnesium oxide can be used as antacid, adsorbent, desulfurizer, lead removal agent, complex filter aid and pH regulator in biopharmaceutical field. It can be used as antacid and laxative in medicine to inhibit and relieve excessive gastric acid and treat gastric ulcer and duodenal ulcer. The neutralization of gastric acid is strong, slow and lasting, and no carbon dioxide is produced.
Extension:
One of the main uses of magnesium oxide is as a flame retardant. Traditional flame retardant materials are widely used as flame retardant mixtures composed of halogen-containing polymers or halogen-containing flame retardants. However, in case of fire, due to thermal decomposition and combustion, a large amount of smoke and toxic corrosive gas will be generated, which will hinder fire fighting, personnel evacuation and corrode instruments and equipment.
Magnesium oxide stimulates the mucosa and causes conjunctivitis and rhinitis. When people inhale magnesium oxide smoke and dust with a concentration of 4-6mg / m3 for 12 minutes, metal smoke and heat can occur. The patient has fever, cough, chest pressure, and white blood cells are significantly increased. However, the symptoms caused by zinc oxide smoke are lighter and rare. It is reported that oral administration of a large amount of magnesium oxide can cause fever reaction, leukocytosis, etc