Different foods impact eating behaviour

How can one be satisfied by one meal, and not by another? Aside from enjoying the food itself, there are several factors the help increase satiety. If we can get to the bottom of how eating behaviour impacts satiety, then we can also understand how to manage weight and at the same time enjoy eating, according to scientists at the Nestlé Research Centre in Lausanne, Switzerland.

No doubt, the aroma, taste and texture of food are what attract us to eat. But the entire eating experience actually influences satisfaction. The amount eaten, the duration of the meal and the satisfaction depend on a number of factors.

The study made by Nestlé researchers in 2012, Influences on Appetite and Energy Intake: Nestlé Scientists Chew the Facts says that pleasant food aroma was more important than the volume of food in the stomach, for the regulation of food intake. In another study made in collaboration with Wageningen University in The Netherlands, they tried to find out impact of the aroma of hot savoury foods and meal in eating behaviour and food intake. The results were based on oral processing characteristics (chewing, bite size, etc) of 35 solid, savoury foods that often comprise hot meals. Examples included a variety of vegetables (e.g. - boiled potatoes, broccoli, carrots), meat and prepared foods (e.g. - chicken, tofu, lasagna, pizza) and snack foods (e.g. - tortilla chips, fish fingers).

Study volunteers were asked to eat a standard 50 g amount of each food item, seven of which were tested over five consecutive days. Video recordings of the volunteers eating the food were then used to calculate the eating rate (g/min), chew rate (chews/min), average bite size (g/bite), average chews/bite and overall oral duration time (seconds) for each of the 35 test foods.

The number of chews for each food varied from 27 chews for mashed potatoes, to 488 chews for tortilla chips - a huge difference. The data shows that people ate softer foods faster.

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