Educate yourself on labeling. They can say SOOO much, especially what we want to hear, but it usually means squat. They can really twist it. For instance, if you look at processed food labeling, there are tons of things out there that might have different names for the exact same thing so unless you know all the other names for MSG, say, you could still be getting it without even realizing it. It can also often hide under "natural flavoring" etc. Ugh... I started learning about this when we discovered my son couldn't have corn or soy (guess the two main ingredients in almost EVERYTHING on the shelves?).
Shopping is so easy now because I go to the produce section, go to the bulk section (or the special order section depending on the item) for my flours (since I can't talk my husband into a grinder to do our own), the dairy for milk, butter and some cheeses (I make some of my own cheese and yogurt). I make everything else myself so I know exactly what it's in it. And there are times that if you don't bother to read & understand the label you may think you're getting something great but in reality you're not.
I'm so thankful I'm in an area where I can either hunt wild game or visit a farm to make sure the animal is living a good life being fed exactly what it should be, no extra drugs, etc. and when I do choose an animal, I know the butcher really well and it's done humanely. I LOVE the chickens my kids helped to raise and butcher. All they ate were bugs and some table scraps. They're so much better tasting then those bland things at the supermarkets anyway. Yes, organic meats are more expensive but all that means is that you eat less meat which is much better for your health anyway. So in this instance, it's quality over quantity. NO ONE needs meat every day. Spread out over a whole week with three meat dinners and a few meat lunches from those left overs is more than enough.