What If It’s Not All ADHD?

From ADHD Case Files · 17:59

Show by Chris Steindorf

Resources Mentioned in This EpisodeGet the Free ADHD Detective’s GuideWant to see the testing and nutritional approach Chris used as part of his own investigation?The free ADHD Detective’s Guide goes deeper into the process and helps you begin asking a different question:What have I been calling “just my ADHD” that might be worth investigating?Download the Free ADHD Detective's GuideBook an Investigative InterviewIf something in this episode sounds familiar and you'd like to start connecting the dots in your own story, book an Investigative Interview with Chris using the calendar link below.link.chrissteindorf.com/widget/bookings/schedule-your-discovery-call-n7qjjfI don't have your actual calendar URL in this conversation, so I would not guess at it.Why Blood Testing Got My AttentionOne of the biggest shifts for me was moving from “How do I feel?” to “What can I actually measure?”My first blood test showed an omega-6:omega-3 ratio of approximately 34:1. After following the nutritional approach discussed in my ebook, I retested at approximately 4:1, and a later test was closer to 3:1.Those are my personal test results. They do not establish that changing my fatty-acid profile caused changes in my focus, energy, or brain fog.But they gave me something I had never had before:A baseline. A change I could measure. And a reason to keep investigating.Something worth thinking aboutYou can feel tired.You can experience brain fog.You can struggle to concentrate.You can assume it's ADHD.But you cannot feel your blood fatty-acid levels.That's one reason testing became so interesting to me.Rather than asking only:“How do I feel?”I started asking:“What does the data say?”The Research Behind the Conversation1. More Than 590,000 Blood SamplesA 2025 peer-reviewed study published in Lipids in Health and Disease analyzed more than 590,000 whole-blood dried blood spot samples from around the world.The researchers reported substantial geographic variation and widespread suboptimal omega-3 status. Importantly for this episode, the researchers wrote:“Direct measurement of fatty acid levels in blood provides the most accurate assessment”of fatty-acid status and balance. Read the 2025 dried-blood-spot studyWhy I included it: This supports one of the central ideas behind this episode:Stop guessing. Start measuring.It does not establish that a particular omega-6:3 ratio causes ADHD symptoms.2. Omega-3 Blood Levels and ADHDA 2014 meta-analysis examined nine studies involving 586 participants and found lower overall blood omega-3 levels in people with ADHD compared with controls. Its supplementation analysis included 16 studies and found modest symptom effects, though the evidence was primarily in children. Read the ADHD and omega-3 blood-level meta-analysis on PubMedAnother meta-analysis specifically examining omega-6:omega-3 ratios reported that children and youth with ADHD had higher blood n-6:n-3 and AA/EPA ratios than controls. Read the omega-6:omega-3 ratio and ADHD meta-analysisImportant: Association doesn't mean causation. These studies don't show that an omega imbalance causes ADHD.3. What About Adults With ADHD?This one caught my attention because I was diagnosed as an adult.A systematic review and meta-analysis examining biochemical research in adults with ADHD found lower serum DHA—the omega-3 fatty acid docosahexaenoic acid—in adults with ADHD compared with controls. Other fatty acids examined, including EPA and arachidonic acid, were not significantly different. Read the adult ADHD systematic review on PubMedAgain, this shows an association, not proof that low DHA causes ADHD.4. Does Taking Omega-3 Improve ADHD?This is where the science gets interesting—and complicated.A 2023 meta-analysis combined 22 randomized controlled trials involving 1,789 participants.Overall, omega-3 supplementation did not significantly improve core ADHD symptoms compared with placebo.However, when researchers separately analyzed studies lasting four months or longer, that subgroup showed statistically significant improvement. The researchers cautioned that the subgroup evidence had limitations. Read the 2023 randomized-trial meta-analysis on PubMedWhy include a study that didn't find an overall benefit?Because I'm not interested in proving something I already believe.I'm interested in investigating what's actually true.5. Omega-6:Omega-3 Balance and InflammationA systematic review and meta-analysis of 31 randomized controlled trials investigated lower-ratio omega-6/omega-3 interventions.Researchers found significant reductions in two inflammatory markers—TNF-alpha and IL-6—but did not find a significant reduction in CRP. Read the inflammation meta-analysis on PubMedMore recent research continues to show that this subject is complicated. A 2026 review of 96 clinical trials found EPA+DHA supplementation increased blood EPA+DHA and reported reductions in several inflammatory markers, particularly among participants with underlying health…

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