New research shows that the ability to control energy intake may be affected by the speed at which we eat, and a high eating rate may impair the relationship between the sensory signals and processes that regulate how much we eat.
For this new study in the Department of Kinesiology at Texas Christian University, researchers asked a group of normal-weight study participants and a group of obese subjects to consume two meals in a controlled environment. They all ate one meal slowly by imagining they had time constraints, taking small bites, chewing thoroughly, and pausing and putting the spoon down between bites. Then, they ate their second meal at a fast pace by doing the opposite.
Investigators discovered that only normal-weight subjects had a statistically significant reduction in caloric intake during the slow compared to the fast meal (88kcal less for the normal weight group, versus only 58 kcal less for the overweight group).