Can omega-3 deficiency be a risk factor for my child's neurodevelopmental disorders?
Omega-3 fatty acids are essential fats that help build and maintain brain cells. Studies indicate that an imbalance between omega-3 and omega-6 fats, or a general lack of omega-3, can affect how the brain develops and functions. This imbalance is linked to conditions such as attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD).
What the research says
A 2026 review highlights that insufficient dietary intake of omega-3 fatty acids and an imbalanced ratio of omega-6 to omega-3 fats can increase inflammation and play a role in the pathophysiology of mental disorders, including neurodevelopmental disorders 3. This review notes that while study results vary, there is growing evidence that these nutritional deficiencies act as modifiable risk factors 3.
Another study from 2010 reinforces this by stating that deficiencies in long-chain omega-3 fatty acids, such as DHA and EPA, have significant effects on brain function throughout life 5. Observational studies have specifically linked childhood developmental disorders to an imbalance where there is a relative lack of omega-3 fatty acids 5. This lack is often associated with high omega-6 intake and insufficient omega-3 supply in the general population 5.
The connection extends to specific conditions. Research identifies that neurocognitive disorders like ADHD, dyslexia, dyspraxia, and autism spectrum disorders are often associated with this relative lack of omega-3 fatty acids 5. Furthermore, these imbalances are being discussed as potential risk factors for these neurodevelopmental disorders 5. A 2026 source confirms that omega-3 deficiency and altered fatty acid profiles are considered potential biomarkers for these disorders 6.
What to ask your doctor
- Could my child's diet be lacking in long-chain omega-3 fatty acids like DHA or EPA?
- Is there an imbalance between omega-6 and omega-3 fats in my child's current diet?
- Would adding omega-3 supplements be a safe option to support brain health alongside other treatments?
- Are there specific foods we should focus on to improve our child's fatty acid intake?
This question is drawn from common patient questions about Pediatrics and answered using cited medical research. We do not provide individualized advice.