3 Supplements I Start With In ADHD (As a Functional Medicine Doctor)

Struggling with ADHD and not sure which supplements are actually worth your time and money?

In this video, I share the three supplements I most commonly start with in my functional medicine practice for ADHD. These aren’t trendy “brain hacks.” They’re foundational nutrients that many people with ADHD are low in—and correcting them can make it easier for your brain to focus, regulate emotions, and recover.

We’ll look at how vitamin D3 with K2, omega-3 fish oil, and magnesium each impact dopamine, inflammation, hormone health, sleep, and nervous system regulation, and why I see the same patterns show up over and over again in lab work.

In this video, you’ll learn:

Why foundational nutrient status matters so much in ADHD
How vitamin D impacts dopamine, mood, energy, and immune function
How omega-3s support focus, mood, and inflammation in the ADHD brain
Why purity, oxidation, and dosing are critical with fish oil supplements
Why magnesium deficiency is so common in ADHD, especially on stimulants
Which forms of magnesium I use most often for sleep, calm, and cognition
How I typically layer these supplements in real patients (and what we track)

👉 If you’d like to see the specific professional-grade formulations of vitamin D3/K2, omega-3, and magnesium that I most often use in my practice, you can find them here:
https://www.designsforhealth.com/u/dr...

👉 If you’d like to work with me one-on-one to address ADHD from a functional and naturopathic perspective, you can get started here:
https://drdansullivan.janeapp.com/#/s...

👉 Want a step-by-step roadmap with tools, strategies, and a supportive community? Join my Natural ADHD Solutions course + community here: https://www.skool.com/natural-adhd-so...

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Connect with me on social media for more information!
Follow on Instagram →   / dr.dansullivan  
Supplements → https://us.fullscript.com/welcome/dsu...

Medical disclaimer: The information in this video is for educational purposes only and is not medical advice. It does not diagnose, treat, cure, or prevent any condition. Do not start, stop, or change any medication or supplement without speaking with your own doctor or qualified healthcare provider.