I don't worry about the things that are simply "not good for you" in large doses, like refined sugar, etc.
What I avoid COMPLETELY are things that are positively harmful, in any amount (for example, Aspartame/nutrasweet, trans fats such as margarine, and now, the microwave)
I am especially suspicious of ANYTHING NEW because I know that only recently do you have such an outbreak of bad health -- such as children with cancer (as well as people of all ages with cancer and all kind of other diseases)
We have never been sicker as a society, and I'm not talking about just moral depravity. I'm talking about actual health.
Also, you can't say "Well, the honest, Catholic farmers producing the margarine would never sell such an awful product." because today we have a handful of HUGE global conglomerates producing most of our food -- trust me, they don't care at all about our health. In fact, they are SO BIG, they probably make money off the medicines, chemotherapy, etc. that it takes to keep us healthy!
That's the problem with mega-conglomerates.
Look at where some of your food is produced -- Kraft Foods North America, a division of Kraft Foods global, inc. General Foods, etc. It's all done by a handful of huge corporations now.
WOW!
Matthew