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# Bacterial infections linked to Alzheimer's disease
- URL: https://www.foodconsumer.org/bacterial_infections_linked_to_alzheimer_s_disease_0904140111/
- Published: 2014-09-04T14:11:00.000Z
- Updated: 2026-09-15T14:23:56.000Z
- Description: A meta-analysis of 25 studies in the Journal of Alzheimer's Disease linked Alzheimer's incidence to spirochetal and Chlamydophila pneumoniae infection, with spirochetal infection tied to as much as a 10-fold higher risk and Cpn to about five times the risk.
- Author: Food Consumer
- Tags: Disease, Health News, #vivvo-import

Thursday Sep 4, 2014 (foodconsumer.org) -- Drs. P. Maheshwari and G.D. Eslick at The University of Sydney/Nepean Hospital in Penrith, NSW, Australia published a [report](https://www.ncbi.nlm.nih.gov/pubmed/25182736?ref=foodconsumer.org) in Journal of Alzheimer’s Disease to suggest that some bacterial infections may cause [Alzheimer's disease](https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&sqi=2&ved=0CDkQFjAA&url=http%3A%2F%2Fwww.alz.org%2Falzheimers%5Fdisease%5Fwhat%5Fis%5Falzheimers.asp&ei=%5FKsIVP7QKYaxyATRg4DgDQ&usg=AFQjCNGHexpGlow%5FvS3OIcyT2WY9h50TWQ&bvm=bv.74649129,d.aWw) although it remains unknown how exactly bacteria could cause this form of dementia.

The the possibility that some bacteria increase risk of Alzheimer's disease has been recognized for three decades now, according to the report. The current report meta-analyzed data from 25 previous studies registered to major databases including MEDLINE, EMBASE, PUBMED, and GOOGLE SCHOLAR and found incidence of Alzheimer's disease linked to infections of spirochetal bacteria or Chlamydophila pneumoniae (Cpn).

Spirochetal infection may increase the risk of Alzheimer's disease by 10-fold and the conservative estimate of the increase in the risk was more than 4-fold. Cpn infection was associated with 5 times increased risk of Alzheimer's disease, according to the report.

Nutrients/vitamins/supplements/foods that may affect the risk of Alzheimer's disease include carnitine, choline, copper, curcumin, Omega-3 fatty acids, folic acid, fruits and vegetables, iron, thiamin, vitamin B6, vitamin B12, and vitamin E. It should be noted that copper and iron may do more harm than good as both may promote oxidation and increase oxidative stress which exacerbate the mental disorder or increase the risk of developing the disease. There is no cure for Alzheimer's disease at this time so prevention is key. (David Liu, PHD)

Maheshwari P, Eslick GD. Bacterial Infection and Alzheimer's Disease: A Meta-Analysis. [J Alzheimers Dis](http://www.j-alz.com/?ref=foodconsumer.org). 2014 Sep 2\.