Claudia Arregoytia, MD, ND, IFMCP

Claudia Arregoytia, MD, ND, IFMCP Functional Medicine Doctor. Personalized Solutions for Optimal Metabolic Health and Longevity.

03/13/2026

5 Daily Neuroplasticity Practices 👇

Neuroplasticity is the brain’s ability to respond to a changing environment, reorganize pathways, and improve function.

Better neuroplasticity can help with creating fresh habits, learning new skills, releasing unneeded anxiety, and pretty much anything else involving the brain 🧠

There are lots of ways to improve neuroplasticity. Depending on your goals, you can choose practices to help reach them.

For example:

1️⃣ Brain Games
If your goals revolve around improving your focus, concentration, reaction time, and memory, you might try blocking off 15 minutes a day to do something like Sudoku, chess, or a brain-training app.

2️⃣Art & Music
If your goals include improving your mood and processing your emotions, you can retrain your brain through creative expression like drawing, painting, or singing.

3️⃣Meditation
If your goals include becoming more mindful and present while improving your mood, meditation reinforces neural pathways related to positive emotions.

4️⃣Deep Breathing
Whether it’s better concentration, focus, mood, or stress resilience you’re aiming for, deep breathing activates the vagus nerve to tell your nervous system to reset.

5️⃣ Yoga
Similar to meditation and deep breathing, yoga activates the vagus nerve and sends a message of calm to the nervous system.

Our brains are forever changing. If we make it a habit to do some sort of neuroplasticity training every day (like one of these things ☝️) , we program the brain to be resilient, malleable, and strong.

Remember:

🗝️ The key with all neuroplasticity practices is to do them often.

Do you practice any of these things?

What benefits do you notice?

Book your free discovery call with me! Link in my bio!


“Only by being obsessed with little things do great things emerge.” -Andy DunnHealth is like this ☝️When you take small ...
03/12/2026

“Only by being obsessed with little things do great things emerge.”
-Andy Dunn

Health is like this ☝️

When you take small but repeated actions today, you’ll look back to see how far you’ve come tomorrow.

Book your free discovery call with me! Link in my bio!

No Rainy Day Excuses ☔️They say there’s no such thing as bad weather, only inappropriate clothing! 🧥As a functional medi...
03/11/2026

No Rainy Day Excuses ☔️
They say there’s no such thing as bad weather, only inappropriate clothing! 🧥

As a functional medicine doctor, I’m always preaching the importance of consistency. Your cells don’t take a day off just because the clouds rolled in over Seattle. Today, the gray skies and rain tried to keep me inside, but I knew my nervous system needed that morning light and movement more than I needed to stay dry.

I laced up my sneakers, layered on the winter coat and gloves, and got those steps in. 👟 Why? Because health isn’t a destination; it’s a daily practice. Movement is medicine. It helps:

* Regulate cortisol levels (crucial for stress management)
* Support lymphatic drainage (your body’s natural detox system)
* Boost mitochondrial function (for sustained energy)

Don’t let a little PNW drizzle derail your metabolic health. If I can do it in this downpour, you can find 20 minutes for yourself today too. Your future self will thank you for the commitment!

03/11/2026

Searching for the right functional medicine support can feel overwhelming. That's why we've created this simple checklist! By following these points and being aware of potential red flags, you'll be well-equipped to find a practice that aligns with your health goals and supports you on your path to vibrant well-being.

Claim your FREE copy now! 🎁 Click the link in my bio

Normal" 🔍 vs. Optimal 🚀Most lab reference ranges will tell you that 30 ng/mL is "fine." But in Functional Medicine, we d...
03/10/2026

Normal" 🔍 vs. Optimal 🚀

Most lab reference ranges will tell you that 30 ng/mL is "fine." But in Functional Medicine, we don’t want you to just be "fine"—we want you to thrive.

For my patients, I generally look for an optimal range of 50–80 ng/mL. Why? Because this is the sweet spot for: 🛡️ Robust immune function 🧠 Stable mood (crucial for those PNW winters!) 🦴 Bone density and muscle strength ⚖️ Hormonal balance

Stop settling for "within normal limits" when you could feel your best.

Comment "SUNSHINE" if you need to check your levels! ☀️👇

Disclaimer: This is for educational purposes. Always test your levels before starting a high-dose supplement!

03/09/2026

Let’s bust some immunity myths 💥

Myth 1️⃣: If I sanitize everything, I won’t get sick.

Aside from the fact that it’s impossible to completely avoid germs, the truth is we need a healthy microbiome for a healthy immune system—to keep everything from infections to allergies to inflammation in check.

Myth 2️⃣: I need to “boost” my immune system.

Boosting immunity is overly simplified because an overactive immune system can be just as damaging as an underactive immune system—contributing to allergies and autoimmunity.

Myth 3️⃣: Vitamin C will keep me healthy.

Sure, vitamin C supports immune function, but it’s not the only nutrient we need. Other key immune nutrients include vitamins A, D, E,, selenium, zinc, and protein.

Be sure to like ❤️ and follow for tips on staying healthy in the coming months!

Stop scrolling and start vetting! 🛑📋Choosing a Functional Medicine provider is a game-changer, but only if they’re the r...
03/07/2026

Stop scrolling and start vetting! 🛑📋

Choosing a Functional Medicine provider is a game-changer, but only if they’re the right fit for your specific needs.

I’m giving away my Functional Medicine Practice Consumer Checklist to help you cut through the noise and get straight to the healing.

What’s inside? ✅ Questions to ask about credentials. ✅ How to understand their "Root Cause" approach. ✅ What to look for in a treatment plan.

Grab your free copy at the link in my bio! 🔗

What they teach you in the textbooks is only half the story. 🩺✨After years of practicing Functional Medicine, I’ve reali...
03/05/2026

What they teach you in the textbooks is only half the story. 🩺✨

After years of practicing Functional Medicine, I’ve realized that the "root cause" isn't always a lab value or a nutrient deficiency. If I could go back to my first day, here are 3 things I’d tell myself:

1️⃣ You can’t out-supplement a lifestyle that burns you out. A high-quality protocol is powerful, but it will never replace the foundational pillars of deep sleep, nervous system regulation, and real food.
2️⃣ Healing is a zig-zag, not a straight line. We often expect progress to be linear, but "flare-ups" are often part of the body's recalibration. Patience is just as important as the prescription.
3️⃣ The patient’s story is the best diagnostic tool. Labs are essential, but listening to the nuances of someone’s life—their stress, their joy, their history—often reveals the "why" before the bloodwork even comes back.

Functional Medicine is a partnership, not a top-down directive. I’m grateful for every patient who has taught me these lessons along the way. 🙏

Which of these resonates most with your health journey? Let’s chat in the comments! 👇

03/04/2026

Welcome to my favorite corner of Kirkland. 🌲✨

There’s nothing like a rainy PNW morning and a fresh pot of coffee to get the creative juices flowing. This space is my sanctuary—where the big ideas happen and the "to-do" lists actually get done. ☕️💻

What’s your one office non-negotiable? Mine is definitely the lighting.

Messy buns and chokes. 💁‍♀️ jiu jitsu is my favorite reminder that I am capable of doing hard things. It’s not always pr...
03/04/2026

Messy buns and chokes. 💁‍♀️ jiu jitsu is my favorite reminder that I am capable of doing hard things. It’s not always pretty, and I definitely leave looking like a different person than when I walked in, but the mental clarity is unmatched. So grateful for my sisters on the mats! 👊💖

Things I do as a functional medicine doctor to support my immune system…➡️ Optimize vitamin D➡️ Stay active➡️ Optimize s...
03/03/2026

Things I do as a functional medicine doctor to support my immune system…

➡️ Optimize vitamin D

➡️ Stay active

➡️ Optimize sleep

Everyone is different!

Just because I do these things doesn’t mean you should too.

Address

Kirkland, WA

Telephone

+14255532937

Website

https://linkin.bio/drclaudiaarregoytia

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