Research has shown that eating slowly promotes satiation and is associated with a lower body mass index. However, the mechanism by which eating rate affects energy intake on a meal-to-meal basis is poorly understood. We tested the hypothesis that eating slowly encourages more attention to a meal, leading to a better episodic memory for that meal during the inter-meal interval. Participants (N = 40) attended the lab at lunchtime to consume a 400-ml portion of tomato soup at either a fast (120-ml/min) or slow (30-ml/min) rate. To control eating rate, the soup was consumed through a tube connected to a peristaltic pump. Appetite ratings were elicited at baseline and at the end of the meal (satiation). Satiety was assessed using an ad libitum ‘taste test’ (three hours later) and appetite ratings (two hours after lunch and after the ad libitum snack). We also assessed memory for the lunchtime meal using ratings of memory ‘vividness’ and a recall task, where participants self-served the volume of soup that they had consumed earlier. Participants who consumed the soup slowly reported greater satiation and satiety. They also remembered eating more soup three hours later. However, eating rate did not affect subsequent food intake or ratings of memory vividness. These findings provide preliminary evidence for a relationship between eating rate, satiety, and memory for recent eating.
|Number of pages||1|
|Publication status||Published - 1 Jun 2016|
- Brain and Behaviour
- Nutrition and Behaviour