Overeat today, skip the scale tomorrow: An examination of caloric intake predicting nonadherence to daily self-weighing.

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Abstract

Daily self-weighing is an effective weight loss strategy. Little is known about "micro" factors influencing nonadherence to self-weighing (e.g., daily overeating). It was hypothesized that increased caloric intake on a given day would increase odds of not self-weighing the following day.Daily self-reports of weight and caloric intake were collected from 74 adults with overweight and obesity (mean BMI?=?31.2?±?4.5 kg/m(2) , age?=?50.6?±?10 years, 69% female, 87% Caucasian) throughout a 12-week Internet-based weight management intervention. Multilevel logistic regression investigated odds of nonadherence to self-weighing on a given day based on the previous day's caloric intake.Self-monitoring adherence was high (weights: 87%; calories: 85%); adherence was associated with greater 12-week weight loss (weighing: r = -0.24, P = 0.04; calories: r = -0.26, P = 0.04). Increased caloric intake on a given day, relative to the individual's average intake, was associated with increased odds of nonadherence to self-weighing the next day (F(1,5106) ?=?12.66, P = 0.0004, ß?=?0.001). For example, following a day of eating 300 calories more than usual, odds of not self-weighing increased by 1.33.Odds of nonadherence to self-weighing increased following a day with higher-than-usual caloric intake. Weight management interventions collecting daily self-monitoring data could provide support to participants who report increased caloric intake to prevent self-weighing nonadherence.

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