Vegetarians Are Slimmer and Less Extroverted Than Meat Eaters

The less animal products someone consumes, the lower his body mass index on average and the less he tends to be extroverted. This is the result of a large-scale study by scientists at the Max Planck Institute for Human Cognitive and Brain Sciences. A connection with depressive moods as other studies had found could not be confirmed.

According to a survey by the Allensbach Institute, more than 6.1 million Germans stated last year that they were vegetarians, 400,000 more than two years earlier. A large-scale study at the Max Planck Institute for Human Cognitive and Brain Sciences (MPI CBS) in cooperation with the University Hospital of Leipzig has now examined in almost 9,000 people how this form of nutrition is related to the body and the psyche - regardless of age, gender and level of education.

It was found that the rarer the proportion of animal food in a person's diet, the lower their body mass index (BMI) on average and thus their body weight. One reason for this could be the lower proportion of heavily processed foods in the plant diet. "Products that are excessively rich in fat and sugar are particularly fattening. They stimulate the appetite and delay the feeling of satiety. If you avoid animal foods, you consume fewer such products on average," explains Evelyn Medawar, first author of the underlying publication, which has now been published in the journal Nutrients. In addition: Vegetarian food contains dietary fibres and has a positive effect on the microbiome in the intestine. This is another reason why they could fill you up earlier than those made from animal ingredients. "People who eat predominantly vegetable foods may therefore absorb less energy," Medawar adds. In addition to a changed feeling of satiety, lifestyle factors such as more sport and greater health awareness could also play a decisive role.

Read more at Max Planck Institute for Human Cognitive and Brain Sciences

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