文摘
The control of eating behaviours such as hunger and disinhibition is problematic for women during weight management. Higher-protein (HP) diets have been shown to promote greater weight reduction than higher-carbohydrate (HC) diets, but their impact on eating behaviours is relatively unexplored. This study compared two iso-energetically restricted (5,600?kJ/day) diets differing in protein (HP: 32?%, HC: 20?%) and carbohydrate (HP: 41?%, HC: 58?%) on appetite ratings, restraint, disinhibition, perceived hunger and binge eating in 36 (HP: n?=?21, HC: n?=?15) young (18-5?years), healthy women with BMI ?7.5?kg/m2 who completed a 12-month clinical weight management trial. Dietary compliance and self-worth were also assessed. Results showed that both diets induced improvements in restraint and disinhibition from baseline (p?<?0.01), with HP participants losing a non-significantly greater amount of weight than HC participants (HP: 9.6?±?2.6, HC: 4.1?±?1.4?kg, p?=?0.07). Despite reasonable compliance, no significant appetite and eating behaviour differences were observed between the diets. Reduction in disinhibition (regardless of diet) significantly predicted weight loss (β?=?0.574, p?<?0.001) and self-worth improvement (β?=??.463, p?=?0.002), while HP intake predicted greater self-worth change (β?=??.371, p?=?0.011). This study demonstrates that young women can improve restraint and disinhibition on a weight management programme, with the reduction in disinhibition shown to be a key predictor of weight loss. HP intake may offer some advantage for increasing self-worth but not eating behaviours. As HP diets are popular, these findings warrant confirmation in a larger sample.