Evidence supporting the use of: DHA
For the health condition: Dementia

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

Source of validity: Scientific
Rating (out of 5): 2

DHA (docosahexaenoic acid) is an omega-3 fatty acid found abundantly in the brain and is important for normal neurological development and function. The interest in DHA for supporting or treating dementia, particularly Alzheimer’s disease, arises from its role in neuronal membrane fluidity, synaptic function, and anti-inflammatory processes.

Several observational studies have suggested that higher dietary intake of DHA or higher blood DHA levels are associated with a reduced risk of cognitive decline and dementia. However, randomized controlled trials (RCTs) have produced mixed results. Some RCTs have failed to show significant cognitive benefits of DHA supplementation in people with established dementia, while others suggest a potential modest benefit in people with mild cognitive impairment or those at risk but not yet diagnosed with dementia.

Overall, current evidence does not strongly support DHA supplementation as an effective treatment for dementia, but there remains scientific interest in its preventive potential. Leading health organizations generally do not recommend DHA supplements as a primary treatment for dementia, though they often support a balanced diet rich in omega-3s for general brain health. The strength of evidence for DHA’s use in dementia is rated as low to moderate (2 out of 5), reflecting mostly observational data and a lack of consistent RCT evidence for therapeutic benefit.

More about DHA
More about Dementia

Products containing DHA

We currently have no products on Caring Sunshine that contain this ingredient.