Natamycin? Not my sin? Whose, then?

Looks like natamycin is a natural ingredient, produced by a bacteria.  So this one is okay.  But not my favorite ingredient (which I might have to say is "cream".  mmmm.)   The EU only allows it in sausage and cheese.  We Americans haven't restricted it's use as far as I have read.
http://www.dsm.com/en_US/downloads/dfs/Fact_sheet_Natamycin_v6.pdf

Powdered Cellulose? In my cheese?

Powdered cellulose sounds okay.  Sounds like they took the green stuff from plants, dried it, and blasted it in a food processor.  Nope.  Not looking good, Mr. Powdered Cellulose.  You just got kicked out of our diet.  Ouch.  How does that make you feel?
http://www.foodrenegade.com/would-like-some-wood-pulp-your-shredded-cheese/

It's not bad for you.  You can keep eating it.  The government and nutritionists actually agree on that.  But it is synthetic.  Goodbye, shredded cheese.  I'll make you myself.  And put you in cozy freezer bags.  And tuck you in my lovely freezer.

Vegetable Rennet? What?

It's a naturally occurring enzyme.  As long is it lists a source (vegetable/animal), it is natural.  There's also genetically engineered rennet, which we are avoiding if possible.
http://cheese.about.com/od/howcheeseismade/f/What-Is-Rennet.htm
http://blog.fooducate.com/2011/04/05/10-things-to-know-about-rennet-its-in-your-cheese/

Fruit Pectin? What's Pectin?

Fruit pectin is in all of my jelly.  I found this recipe about how to make it: http://www.motherearthnews.com/real-food/pectin-recipe-zmaz80mjzraw.aspx

So yes, it's natural.  Yes, you can make it.  No, I won't be making it.  Yes, we will be eating it.

Potassium Sorbate?? Say What?

Potassium Sorbate is in every jar of jelly/jam in my house.  So we haven't had an PB&J.  I finally decided to look it up.  Is it natural?  If so, why the unnatural name?

Here's a video I found about some research done on potassium sorbate:
http://nutritionfacts.org/video/is-potassium-sorbate-bad-for-you/

The conclusion of the researchers is that Potassium Sorbate is a genotoxic and mutagenic compound.
Genotoxic: damaging to DNA: pertaining to agents known to damage DNA, thereby causing mutations, which can result in cancer.
Mutagenic: An agent, such as a chemical, ultraviolet light, or a radioactive element, that can induce or increase the frequency of mutation in an organism

How about PS in a positive light?

"consumption of potassium sorbate is non-toxic -- even when taken in large quantities -- and breaks down in the body as water and carbon dioxide"

Read more: http://www.livestrong.com/article/269997-what-are-the-dangers-of-potassium-sorbate/#ixzz28MRmyItf

Either way, we're not eating it.  It's synthetic.