It often amazes me to see all of these studies published on the web or pitched in the media that persuade people to into choosing one food choice over another. Eggs are good for you with one particular study and then they are bad for you with another study. Many of these "Studies" are all part of the marketing machine and more times than not, aren't ground in truth. Personally I know that many foods out there can be good or bad for you based on the foods they are combined with.
But there are some foods no matter how you combine them that will have negative affects. Enough so that they are BANNED from most countries because of the ingredients they contain. It is one thing to try to determine if something is good for you based on studies. It is another thing when countries make foods illegal and charge hefty fines to the tune of hundreds of thousands of dollars per offense. I always knew that pre-packeged foods were not good for you because they were "processed". Do you know what they were processed with?