Obesity Could Speed Alzheimer's Progression, Study Suggests

Key Takeaways

Obesity appears linked to quicker progression of Alzheimer’s disease

Blood markers associated with Alzheimer’s increase faster among people with obesity

These blood markers proved better able than brain scans in tracking the impact of obesity on Alzheimer’s

TUESDAY, Dec. 2, 2025 (HealthDay News) — Obesity might contribute to faster progression of Alzheimer’s disease , a new study says.

Some blood markers associated with Alzheimer’s increased nearly twice as fast among people with obesity compared to people who didn't have obesity, according to results presented today at the Radiological Society of North America’s annual meeting in Chicago.

“This is the first time we’ve shown the relationship between obesity and Alzheimer’s disease as measured by blood biomarker tests,