This is the kind of thing that shouldn’t need an article.
Although I’ll admit that Pepperidge Farm bread loaf surprised me.
Maybe this is news to you, if so, hear this:
It isn’t a little evidence, it’s reams of evidence that eating this way is terrible for you in a way that makes you die earlier.
Eating better isn’t complicated: the closer a food is to the way it was grown, swam or walked the better it is. Maybe not a perfect rule, but you will eat better following it.