You can die from it

Try to search for " Epsom Salt side effects" which instantly reveals that "Symptoms of an magnesium sulfate overdose include nausea, vomiting, flushing, low blood pressure, a slow heartbeat, drowsiness, coma, and death." You actually just proved my point why one can't just gobble down something without doing a thorough research :)

Here it is:

http://www.drugs.com/xq/cfm/pageID_0/htm_d00468A1.htm/bn_Epsom%20Sa...