Italy: distribution of Body-Mass-Index (BMI) 2018, by age

The age distribution of the body mass index reveals that weight increases hand in hand with age among the Italian population. In 2018, most of Italians aged between 65 and 74 were overweight. The age group with the largest share of normal weight people was the one including individuals who were 18 to 24 years old. However, this portion of the population was also the one with the highest incidence of underweight individuals. To put it in numbers, in 2018, 9.4 percent of Italians aged 18 to 24 were underweight.

Prevalence of overweight and underweight

Overall, the number of overweight individuals exceeded by far the number of people dealing with underweight. The number of overweight people in Italy increased from 16,642 in 2005 to 17,805 individuals in 2018. Also, the number of underweight individuals peaked in 2018 as a result of a steadily increasing trend started in 2009.  

Eating disorders

Weight gain or loss is often caused by eating disorders. In 2017, the age group including people aged 20 to 29 years was the one with the highest incidence of both bulimia and anorexia nervosa .  

Distribution of Body-Mass-Index (BMI) in Italy in 2018, by age

Normal weightOverweightObeseUnderweight
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Release date

June 2019



Survey time period


Age group

18 years and older

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Statistics on "Obesity and overweightness in Italy"

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