Sodium Benzoate
		Sodium benzoate is a synthetic preservative which has been shown to have an antibiotic effect on the essential friendly gut flora.  Possibly the largest use of sodium benzoate is as an anticorrosive, and antifreeze additive, and in the production of plastics and as a stabilizer in photographic baths/processing.   (BUA, 1995) Read more on toxicity of sodium benzoate after short term oral exposure HERE.