Sodium Bicarbonate Linked to Lower Dementia Risk
A study found sodium bicarbonate may reduce dementia development likelihood in patients by 51 percent.
Updated on Oct. 3, 2026 in Alzheimer’s
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Researchers identified a 51 percent lower likelihood of developing dementia among patients using sodium bicarbonate. Published in October 2026, the study examined 122,000 individuals over age 50 who had mild cognitive impairment.
Why it matters
The findings offer a potential low-cost pathway for dementia prevention, as current medical options remain limited. Researchers focused on identifying affordable, already-available drugs to address the growing global burden of cognitive decline.
The study analyzed records of 122,000 patients over age 50, identifying a 51 percent lower dementia risk for those taking sodium bicarbonate. Researchers also identified 20 other common medications that may provide protective benefits.
The players
NHS
The public health system in Britain provides care for nearly one million citizens currently living with dementia.
Stanford University
This American research institution conducted a 2025 study examining the relationship between the shingles vaccine and dementia risk.
The details
Sodium bicarbonate, traditionally used to treat advanced kidney disease, appears to function by preventing the buildup of harmful acids within the body. Researchers reached these findings by comparing memory test scores and official dementia diagnoses across the large study population.
Timeline
The study findings were reported in October 2026.
A related Stanford University study on the shingles vaccine and dementia occurred in 2025.
Britain projects 1.4 million dementia cases by 2040.
The Big Picture
This research follows a pattern set by the 2025 Stanford University study on shingles vaccine and dementia, which also explored how existing medical treatments might inadvertently offer neuroprotective benefits.
While these findings are promising, patients should not initiate sodium bicarbonate use for dementia prevention without medical consultation. The research highlights the potential for affordable treatments, as the drug currently costs approximately 9p per tablet.
The takeaway
This analysis highlights the potential for repurposed, inexpensive medications to address gaps in current dementia care. Patients and providers should continue to monitor official health guidance as researchers investigate these common drugs further.
Further reading
For more information on current research, visit the /health/diseases/alzheimers/ section.
Source note: This article includes information reported by Mail Online.
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