Protein as King? The Crown is Tarnished

I cringe when I get asked what protein I want on my salad, already heaped with beans. We have been led to believe that the more protein the better, particularly if it is grilled chicken. New data this week shows that diets low in methionine, a building block of proteins, influence metabolism in mice and humans and may assist cancer therapy (in mice). What foods are low in methionine? Plant foods, of course.