Rome cooks turned roast turkey into meatballs for teenagers with autism. More cleared their plates, until the fruit came

Many autistic children and teenagers eat a narrow range of foods, and the reasons are often sensory: a texture that feels wrong, a smell that is too strong, a plate where too many colours touch. Most attempts to widen what they eat happen at home or in a clinic. A pilot study published on 30 October in Frontiers in Nutrition tried it somewhere more ordinary: the lunch hall of an agricultural technical high school in Rome.

Fourteen students with a diagnosis of autism took part between November 2025 and February 2026, and eleven finished (ten boys, aged 14 to 20). Researchers watched each of them eat twelve school lunches and recorded how much of every dish went, in quarters from none to all. For the first six lunches the canteen served menus planned to Italian dietary guidelines and Mediterranean principles. For the next six, the plan stayed the same but the food changed shape. Diced zucchini became a zucchini purée stirred through the pasta. Cod fillets became soft cod fishballs. Roast turkey became turkey meatballs. Penne gave way to potato gnocchi, a mixed salad to plain lamb's lettuce, green beans and carrots to carrots alone. The aim was softer textures and plates closer to a single colour.

Some of it seemed to work. With the zucchini purée, the share of pasta servings eaten to the last bite rose from 50.0% to 61.5%. Cod servings finished in full went from 60.6% to 67.7%, and the turkey from 54.5% to 63.6%. Fruit did badly. Strawberries were swapped for kiwi with its core removed, and sliced kiwi for soft persimmon pulp; on the second menu, the share of fruit servings left untouched climbed from 54.5% to 81.8%. The authors point out that these were different fruits, not softer versions of the same one, so the swap itself may explain much of it. Across both phases, warm dishes, mild smells and plates that looked uniform were eaten more readily.

The second phase changed something else too. Before, each student sat at a small table with an assistant. Afterwards they could sit where they liked, and most chose to sit together. Observers noted that students who used to wander off now stayed seated for the whole meal, phones were used less (assistants offered food-themed comic books instead), and the steadier eaters encouraged the others. Because seating and menus changed at the same time, nobody can say which did what.

There are other cautions. There was no comparison group, eleven is a small number, and familiarity with the room and the researchers alone could have nudged eating up. Parent questionnaires were mixed: six students rated as having severe food selectivity at the start became one at the end, but food refusal scores got worse, and more families reported pastries for breakfast. A practical finding stands on firmer ground: when the team analysed the meals in a laboratory, the kitchen was serving about two-thirds to four-fifths of the planned energy, and every menu fell short on fat. Even a well-briefed canteen drifts from the plan, which matters for students who may already eat little.