I can go into Erin Clinton’s diary and see that she had fat-free Chobani yogurt for breakfast, along with some Kashi cereal and nonfat milk, for a total of 278 calories—and also that she walked 27,000 steps, which is halfway from New York City to Buffalo, I think. However, until five minutes ago she could not see that I ate two slices of 100% whole-grain bread with a tablespoon of American Spoon sour cherry preserves and a teaspoon of butter for, coincidentally, an identical 278 calories. Her breakfast had more protein (from the yogurt) and was probably better balanced.
I basically felt shamed into sharing my diary: If Erin’s sharing, don’t I have to? But it creeps me out a little bit. One person considering joining our effort said she was simply too private—both regarding food and fitness—to possibly share.
But, of course, a food diary is like any other diary that you know will be read by others: You can always lie to it. So far, the UP band does not contain a lie-detector algorithm … but I’m sure that’s coming.