Fooducate is a nifty, free mobile app that I just learned about. It enables you to scan bar codes on supermarket foods and get an instant read on its health value, by assigning a letter grade and points score, highlighting good/bad attributes, suggesting alternatives and allowing you to compare similar products.
Several tests around the house worked well. Trader Joe’s Honey Nut O’s gets a solid B, but not the A- given to the unsweetened O’s with less sugar. Its organic ketchup is just a C but no alternatives top it. Dark chocolate bar a D, as health benefits outweighed by saturated fat.