TEN points FOR BEST ANSWER : WATER.?

nitrates come from everything that is sold to make things grow that is why you do not eat a fish caught in a pond on a golf course. with tap water i would worry more about flouride which they have changed the name., it hardens your teeth and also your arteries. spring water is from the source you get it. nitrates are in everything from beef to vegtables to the air you breath.