You know what? This generalization of what is good and bad for you - is just a generalization to find a common food product which is easily mass producible and consumable by the entire planetary populace. However, just as shirts are tailored, I believe we may be entering an age of tailored foods for 7 billion + individuals. MSG can depend on who you are, how old, what else do you eat, are you on a plane. We will get there. Quick! Somebody make an app and Hadoop it.