Lunch eaten standing between meetings has now lost its air of exception. The same goes for the sandwich bought near the office, the company canteen, the dinner ordered on the sofa, the fast food after the shift, the restaurant on Saturday evening which has become a sort of natural extension of the week. Eating out has become a habit with the discretion of practical things: it saves time, takes a pot out of the sink, keeps you company, sometimes even consoles you. Then the numbers arrive and that normality begins to take up more space.
A new study presented at the European Congress on Obesity, ECO 2026, scheduled to be held in Istanbul from 12 to 15 May, analyzed the data of 280,265 adults in 65 countries and lined up a very clear figure: globally, around 47% of adults consume at least one meal prepared outside the home every week. Almost one in two people. The research, led by scholars from the universities of Göttingen and Heidelberg, talks about the association between food prepared outside the home, weight gain and obesity, therefore calls for caution: it photographs a robust link, without transforming it into an automatic ruling on the individual dining out.
A routine that has become enormous
Inside that “away from home” there is everything: bars, restaurants, canteens, fast food, street food, take away, delivery. The technical category used in the study indicates foods and drinks prepared by commercial establishments and consumed away from the home kitchen. It seems like a cold definition, then just think about the average week in an Italian city: coffee and croissant grabbed on the fly, salad topped by others, dish ready during lunch break, pizza ordered in the evening. Small, repeated pieces, often harmless if looked at one at a time.
The problem arises from frequency and context. According to the data, in high-income countries the average number of meals out is more than triple compared to low-income countries: 3.66 meals per week compared to 1.06. However, among those who eat out at least once a week, the gap narrows: 4.39 meals in rich countries and 3.51 in low-income countries. In the United States, 84% of adults report at least one meal out per week, with an average of four meals; in East Timor the share drops to 12%, despite around three meals a week among those who have this habit.
Countries change, incomes change, the social meaning of the habit also changes. In poorer countries, eating out can still be a sign of greater economic availability. In rich countries it has become normal, transversal, almost invisible. The study also finds differences related to sex, age, work, marital status and education: men, younger people, employed people, those without a partner and those with higher levels of education tend to consume meals prepared outside the home more often.
The weight of the portions
The most delicate part concerns the relationship with overweight and obesity. In low-income countries, people with obesity consume food outside the home 39% more frequently than people with normal weight. For overweight people the frequency is 28% higher. In low-to-middle income countries, those living with obesity show a 20% higher consumption of meals out. These are percentages that tell of a transformation that has already begun: when ready, abundant, cheap and high-calorie food becomes more accessible, public health must also deal with what happens outside the pantry.
The single restaurant meal remains out of the dock. A dinner out, a well-organised canteen, a carefully chosen sandwich, a shared pizza without food anxiety belong to real life. The question lies in the medium. Meals prepared away from home more often tend to be high in salt, sugar, unhealthy fats and calories, with larger portions and less controllable ingredients. A pasta may come with much more seasoning than we would use at home. A salad can be transformed into a small repository of sauces, cheeses, croutons and dressings. A seemingly simple sandwich can carry with it a quantity of calories that is difficult to guess by eye.
Mubarak Sulola, of Heidelberg University, links these findings to the ongoing nutritional transition in low- and lower-middle-income countries: increasing access to large portions and energy-dense foods is rapidly changing the way people eat. Sebastian Vollmer, of the University of Göttingen, broadens the discussion: in the current food environment, choosing nutritious and balanced foods becomes more complicated, so the prevention of obesity must also look at the sector of food prepared outside the home.
Prevention leaves home
For years the discussion on body weight has been based on individual will: cook better, move more, choose carefully. All useful things, of course. However, an increasingly large portion of the daily diet passes through places where ingredients, quantities, condiments and cooking methods are decided by others. Bars, canteens, chains, restaurants, kiosks, home delivery apps: eating out is now a stable part of the food landscape.
Here the more concrete part opens. More readable menus, more balanced portions, truly nutritious options, less hidden salt, less added sugars, separate condiments, clear information. School and company canteens also have a huge role, because they turn prevention into a repeated habit, without making it seem like a punishment. Public health also passes through a dish served at the same time every day, with the same naturalness with which a delivery notification passes today.
However, the study has important limitations: it is cross-sectional, therefore it observes associations in a defined moment or period; some data comes from surveys conducted several years ago, between 2009 and 2021; responses about meals are self-reported; the analysis considers the number of meals, rather than the precise nutritional content; furthermore, physical activity and energy expenditure can affect the picture. All this makes the result less suitable for slogans and more useful for reading a trend.
Eating out will continue to be part of our lives, especially where work, long hours, cities and digital platforms make home cooking a kind of evening luxury. The practical point, much less elegant than a perfect diet written on the refrigerator, is to demand better food outside the kitchen too. Because prevention now also comes from a tray with a lid.
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