Well, exactly what is on this sub that makes it produce only 6 grams of fat, everything is unknown, not everyone eats a sandwich " nature ". So what happens when things are added, extras? The food preparer learns how much of each to put on a sandwich, but to face reality, how much is actually put? Speaking from my own experience, I don't remember the ounces of lettuce that go on a 6-inch sub, but for the other individual items it was as follows (2005): three tomatoes, three cucumbers, three olives , three pickles, three slices. onions, etc. is what "should be on a 6 sub", but it doesn't always happen that way. Customers would say “a little more” for the price of the sandwich. According to the American Heart Association, to get a 6-inch sub with 6 grams of fat or less on 9-grain wheat bread, and only toppings allowed are: lettuce, tomatoes, onions, green peppers and cucumbers ( plus a package of SUBWAY® apple slices or 1 small apple plus water). Only certain meats are allowed to meet this goal, which does not include specialty subs (i.e. BBQ chicken, meatballs). Dr. Lenar Lesser, a researcher at the Palo Alto Medical Foundation Research Institute, conducted research with 97 adolescents aged 12 to 21 who were required to purchase meals from McDonalds and Subway. They consumed an average of 1,038 calories at McDonald's and 955 calories at Subway. He found that although calories were significantly lower at Subway, the