The people who weighed themselves every day were much more successful at keeping their weight from creeping back up. They were less likely to go on eating binges, and they didn’t show any signs of disillusion or distress from their daily confrontation with the scale. For all the peculiar challenges to losing weight, one of the usual strategies is still effective: the more carefully and frequently you monitor yourself, the better you’ll control yourself. p. 231
From Willpower: Rediscovering the Greatest Human Strength by Roy Baumeister and John Tierney
Found in my electronic chapbook.