Xiaoran Liu, Dennis J Hanseman, Catherine M Champagne, George A Bray, Lu Qi, Donald A Williamson, Stephen D Anton, Frank M Sacks, Jenny Tong
Journal: The Journal of clinical endocrinology and metabolism 2021;105(4):1274-83
PMID: 31802116
Food cravings are a psychological state associated with increased food intake and body weight. Understanding food cravings and psychological behaviour may help weight management. This randomised control trial of 811 individuals on a weight loss regime aimed to determine relationships between behavioural factors and weight changes over two years. The results showed that individuals who reported the strongest food cravings, lost less weight and those who had weaker cravings lost the most weight. Craving fatty foods was associated with greater weight loss, less calories consumed and reduced fat intake. Craving carbohydrates was associated with less weight loss and greater weight regain after 2 years. Interestingly, participants lost the most weight in the first six months and then regained weight in years one and two. It was concluded that cravings were most likely to influence weight loss and regain. Individuals who craved fatty foods, were more likely to lose weight through decreased calorie and fat intake. This study could be used by health care professionals to understand that helping their obese and overweight patients to manage their food cravings may aid weight loss and prevent weight gain.
CONTEXT
Eating habits and food craving are strongly correlated with weight status. It is currently not well understood how psychological and behavioral factors influence both weight loss and weight regain.
OBJECTIVE
To examine the associations between psychological and behavioral predictors with weight changes and energy intake in a randomized controlled trial on weight loss.
DESIGN AND SETTING
The Prevention of Obesity Using Novel Dietary Strategies is a dietary intervention trial that examined the efficacy of 4 diets on weight loss over 2 years. Participants were 811 overweight (body mass index, 25-40.9 kg/m2; age, 30-70 years) otherwise healthy adults.
RESULTS
Every 1-point increase in craving score for high-fat foods at baseline was associated with greater weight loss (-1.62 kg, P = .0004) and a decrease in energy intake (r = -0.10, P = .01) and fat intake (r = -0.16, P < .0001) during the weight loss period. In contrast, craving for carbohydrates/starches was associated with both less weight loss (P < .0001) and more weight regain (P = .04). Greater cognitive restraint of eating at baseline was associated with both less weight loss (0.23 kg, P < .0001) and more weight regain (0.14 kg, P = .0027), whereas greater disinhibition of eating was only associated with more weight regain (0.12 kg, P = .01).
CONCLUSIONS
Craving for high-fat foods is predictive of greater weight loss, whereas craving for carbohydrates is predictive of less weight loss. Cognitive restraint is predictive of less weight loss and more weight regain. Interventions targeting different psychological and behavioral factors can lead to greater success in weight loss.
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