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 Are food preservatives bad for you?
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Description:

Food doesn¡¯t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out on the shelf at the grocery store — hopefully unspoiled -- thanks to preservatives. But what exactly are preservatives? How do they help keep food edible? And are they safe? Eleanor Nelsen investigates.


Questions: 

1. Why artificial food preservatives are bad for our health?

2. What are cultured foods? Give some examples. 

3. Should we worry about preservatives? Why or why not?

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2017-02-02 ¿ÀÀü 9:11:47
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