Sodium benzoate
is added to many foods with a pH 4.5 or lower such as pickles, catsup, and soft
drinks. It is also added to mouthwashes, toothpastes, creams, lotions and other
cosmetic products where a small percentage may be absorbed through the skin.
Sodium benzoate
is not found in foods unless it is added as a preservative. However, quite a
number of foods contain benzoic acid. High concentrations of benzoic acid are
found in some berries. Apples, plums, cinnamon, cloves and other foods
including milk contain benzoic acid. It is found in many plants, animals and
milk. You will find a number of sites on the internet stating that sodium
benzoate is found in foods. That information probably came from Concise
International Chemical Assessment Document 26 (2005). I encourage you to read
it for yourself. I’ve included it in its entirety here, because it includes a
great deal of related information. The document states that benzoic acid is
naturally contained in many foods. The confusion comes because the document
often uses benzoic acid and sodium benzoate synonymously e.g. benzoic
acid/sodium benzoate. However, it clearly states that it is benzoic acid that
is found naturally in foods, but sodium benzoate a food additive.
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