{
  "id": 1437211,
  "title": "Fatty food raises risk of colorectal cancer",
  "url": "https://urgent.news/2026/08/17/fatty-food-raises-risk-of-colorectal-cancer",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-08-17T06:49:00.000Z",
  "source": {
    "name": "DW News",
    "slug": "dw-news",
    "url": "https://www.dw.com/en/fatty-food-raises-risk-of-colorectal-cancer/a-78284704?maca=en-rss-en-all-1573-rdf"
  },
  "original_language": "en",
  "account": "A recent study conducted by researchers from the Technical University of Munich, RWTH Aachen, and the German Institute of Human Nutrition Potsdam-Rehbrücke has unveiled a significant link between high-fat diets and the development of colorectal cancer, particularly in adults under the age of 50. The researchers discovered that Western diets rich in fats promote the growth of gut bacteria that produce a secondary bile acid, known as deoxycholic acid (DCA). This secondary bile acid, which is generated by certain gut bacteria, is believed to contribute to tumor growth.\n\nThe study, published in the Gut journal, demonstrates the causal relationship between DCA-producing gut bacteria and colorectal cancer for the first time. In their research, the scientists implanted DCA-producing bacteria into mice with controlled intestinal microbiomes. Those mice subsequently developed more colorectal tumors than mice without the bacteria. Furthermore, increased cell division in the mice with DCA-producing bacteria was linked to higher cancer risk due to the elevation of DNA replication errors.\n\nTo validate these findings in humans, the researchers analyzed stool samples from over a thousand individuals, both with and without colorectal cancer. They found that genes of DCA-producing bacteria were more frequently present in people with colorectal cancer.\n\nWhile the study provides crucial evidence of the connection between high-fat diets and colorectal cancer, the researchers emphasize the need for further investigation. However, the implications for potential treatments are promising. The findings could lead to the development of strategies to target DCA-producing gut bacteria as a means to combat colorectal cancer.\n\nColorectal cancer is a concerning health issue, as mortality rates for those under 50 have been on the rise in recent decades. In the United States, colorectal cancer deaths have increased by 1.1% annually since 2005, despite decreasing mortality rates for other types of cancer. This trend may be attributed, in part, to the prevalence of Western diets in the US.\n\nEarly detection of colorectal cancer is crucial for successful treatment. However, symptoms often do not appear in the early stages, and misinterpretation of symptoms as less severe conditions can delay diagnosis. To promote early detection, individuals should be encouraged to discuss colorectal health with their doctors openly.\n\nOne potential future treatment option is the transplantation of microbiomes from individuals with lower levels of DCA-producing bacteria into patients suffering from colorectal cancer. This could potentially slow down tumor growth. However, the most effective prevention strategy remains maintaining a healthy lifestyle, which includes a balanced diet, reduced consumption of fatty foods, and abstaining from smoking.",
  "summary": "Did you know fatty foods can increase production of an acid in your gut that promotes tumor growth? That's on top of all the other health risks linked to fatty foods, like fries and burgers.",
  "key_points": [
    "High-fat diets increase colorectal cancer risk in adults under 50.",
    "Western diets promote growth of bacteria producing deoxycholic acid (DCA).",
    "DCA-producing bacteria linked to higher cancer risk via increased cell division."
  ],
  "editors_take": "This study's findings on the link between high-fat diets, gut bacteria, and colorectal cancer suggest that dietary changes and microbiome-targeted treatments could become new strategies to combat the disease.",
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "DW English (Top Stories)",
        "title": "Fatty food raises risk of colorectal cancer",
        "url": "https://urgent.news/2026/08/17/fatty-food-raises-risk-of-colorectal-cancer-1438602",
        "published": "2026-08-17T06:49:00.000Z"
      }
    ]
  },
  "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."
}