Can Genetic Testing Predict Type 1 Diabetes? Experts Say Earlier Treatment Is Possible

image via New Scientist

October 14, 2025, 10:00 AM

• •Genetic screening can identify those at risk of type 1 diabetes before symptoms appear.
• •Early detection allows for earlier treatment and potential delay of disease onset.
• •Scientists have identified numerous genes and genetic variations linked to type 1 diabetes risk.
• •Ongoing research aims to improve genetic risk scores and tailor treatments based on individual genetic profiles.
• •Several countries are considering or implementing population-wide genetic screening programs.

Genetic screening for type 1 diabetes is gaining traction as a way to identify individuals at risk before symptoms appear, potentially leading to earlier treatment and better outcomes. Advances in genetic testing have revealed intricate interactions between genes and the immune system, paving the way for widespread screening, even at birth. While environmental factors play a role, genetics account for a significant portion of the risk, and researchers are working to improve the accuracy of genetic risk scores, especially across diverse populations. The ultimate goal is to personalize prevention strategies, including identifying those who will best respond to new therapies, and to potentially prevent the onset of the disease entirely.

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