{
  "id": 10709404,
  "title": "Fruit flies remember their larval diet, which influences their longevity",
  "url": "https://urgent.news/2026/09/29/fruit-flies-remember-their-larval-diet-which-influences-their",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-29T14:39:25.000Z",
  "source": {
    "name": "Ars Technica",
    "slug": "ars-technica",
    "url": "https://arstechnica.com/science/2026/09/fruit-flies-remember-their-larval-diet-which-influences-their-longevity/"
  },
  "original_language": "en",
  "account": "In the 1930s, researchers observed that water fleas and rats raised on limited diets during their early stages exhibited extended lifespans. This phenomenon has since been replicated in fruit flies and mice, but the mechanism behind this phenomenon remained unknown. A recent study published in Nature, led by Fumiaki Obata from the RIKEN Center for Biosystems Dynamics Research in Kobe, Japan, might have uncovered the answer. The research team discovered a protein that retains information from a fruit fly's larval diet, which then impacts their longevity as adults.\n\nThe experiment involved feeding lab fruit flies a yeast and sugar mixture, with yeast serving as the primary protein source. The scientists reduced the yeast concentration in the diet, from 8% to either 1% or 2%, introducing this low-protein diet halfway through the larval period. After emerging as adults, the flies were returned to their standard food.",
  "summary": "Eating less protein as larvae may limit their ability to produce proteins as adults.",
  "key_points": [
    "Fruit flies' larval diet influences their adult longevity.",
    "Researchers discovered a protein retaining larval diet info.",
    "Low-protein larval diet extended adult flies' lifespan."
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}