In this study which included 1490 dementia-free participants aged 65 years old or older, the researchers examined the association of the amount of DHA in red blood cell and the incident of Alzheimer’s disease (Sala-Vila A, et.al., 2022).
DHA is one of the omega 3 fatty acids found in fish oil.
During the follow up which was an average of 7.2 years, 131 cases of Alzheimer’s disease were documented.
The risk for incident of Alzheimer’s disease in the participants with the highest red blood cell amount of DHA quintile (Q5) was 49% lower compared to the participants with the lowest amount of quintile (Q1) DHA.
This was predicted to provide an estimated 4.7 additional years of life free of Alzheimer’s disease.
When taking fish oil use a formula high in both EPA and DHA since both of these omega 3 fatty acids are important.
Aleix Sala-Vila, Claudia L Satizabal, Nathan Tintle, Debora Melo van Lent, Ramachandran S Vasan, Alexa S Beiser, Sudha Seshadri, William S Harris Red Blood Cell DHA Is Inversely Associated with Risk of Incident Alzheimer's Disease and AllCause Dementia: Framingham Offspring Study, Nutrients. 2022 Jun 9;14(12):2408.