I avoid MSG, artificial coloring and flavorings, gluten, dairy, soy, and I may cut out eggs as well. I read labels like a hawk. My only redeeming factor is that I do this not for myself but for my daughter. I suppose I ended up like this because I used to scorn people who were concerned about buying organic, unprocessed foods. Sigh. Now I just have to try not to analyze all my friend's diets and to keep quiet about their food choices.
But should I speak up, if I truly believe that something they are eating is harmful?