what causes toxins to build up in muscle
Toxins from Bacteria. 1  Anthrax lethal toxin is produced by Bacillus anthracis. 2  Botulinum toxin, produced by Clostridium botulinum, is the most poisonous substance known.2 It causes botulism, a severe muscle-paralyzing disease, which affects an average of 200 persons living in the United States each year.