FUNCTIONAL MEDICINE AND MEDICAL WEIGHT LOSS CLINIC IN ROYAL OAK, MI
Empowering women to thrive with functional medicine, sustainable weight management and holistic wellness.
This is your time to thrive, and we’re here to make sure you do it with
confidence,
strength, and a whole lot of
self-love.
Each stage of life brings new opportunities to prioritize your health and well-being. At our clinic in Royal Oak, MI, we help you take control of your health journey. Through functional medicine and sustainable weight management, we uncover the root causes of your symptoms, empowering you to reclaim your energy, vitality, and sense of self.


Brain fog, sudden weight gain, and insomnia making you feel like you’re not yourself anymore?-We get it.
You deserve to feel vibrant and energized—not stuck in a cycle of exhaustion and frustration.
You should be able to manage your weight without crash diets or spending hours in the gym.
You should be sleeping through the night, waking up refreshed, and ready to take on your day.
What if you could learn how to balance your hormones and reclaim your confidence in just a few months—without feeling overwhelmed or guessing what works?
It’s time to stop surviving and start thriving. Let’s make it happen. This is your time.
We’re redefining what health care means for women like you—because this isn’t about aging, or treating symptoms—we help you take holistic control of your health, your body, and your life so you can live this era fully and unapologetically.
Functional Medicine
We’re not about quick fixes. We dig deep to find the root causes of what’s holding you back, so you can finally feel balanced, energized, and in control of your health.

Medical weight loss
Ditch the diets that don’t work. We’ll help you fuel your body in a way that feels good, works with your hormones, and fits your real life—because eating well shouldn’t feel like a struggle.

Nutrition
Nourishing your body shouldn’t feel like a guessing game. Our personalized nutrition plans are designed to support your unique needs—balancing hormones, improving energy, and fueling your body in a way that works for your lifestyle.

Mindfulness
Life’s chaos doesn’t have to control you. We’ll guide you in simple, doable practices to quiet the noise, manage stress, and reconnect with your calm, grounded self.

Medication
Sometimes, your body needs a little extra support—and that’s okay. We use medication thoughtfully and as part of a bigger plan to get you feeling your best, faster and sustainably.
It’s time to reclaim your
energy,
confidence, and power, so you can thrive in this incredible chapter of your life.
How it works
01
Start your application
Take the first step toward reclaiming your energy, balance, and confidence by filling out an application here.
02
Discover your personalized program
Together, we’ll uncover the root causes of your symptoms and design a tailored plan to meet your unique needs. Our programs require a minimum 3 month commitment to ensure lasting transformation.
03
Redefine your holistic health
This is your journey to vibrant, sustainable wellness. With our support, you’ll embrace the healthiest, most empowered version of yourself—inside and out.
7 healthy recipes to add to your diet
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Contact Us

FUNCTIONAL MEDICINE AND MEDICAL WEIGHT LOSS CLINIC IN ROYAL OAK, MI
Board-certified functional medicine and weight
management physicians, female, specialized, with over 10 years of experience.
Hi, we’re Dr. Erin Hendriks and Dr. Maricela Castillo MacKenzie—the founders of Elle MD in Royal Oak, Michigan and your partners in redefining what thriving looks like in your 40s and beyond. Together, we’re on a mission to help women feel vibrant, confident, and in control of their health.
We firmly believe that this stage of life isn’t about settling—it’s about rising. That’s why we started Elle MD: to create a space where women are heard, understood, and empowered with personalized care that addresses the root causes of their health challenges. From stubborn weight gain to hormonal chaos, we’re here to help you reclaim your energy, balance, and confidence.
When we’re not designing customized wellness plans or cheering on your progress, you’ll find Dr. Hendriks experimenting with French cooking and Dr. Castillo MacKenzie traveling with her family.
We both believe life is better with laughter and good friends.
What our patients say about us...
This is your moment to
rise and
thrive.
We’re here to help you reclaim your health, your body, and your life—because you deserve nothing less.
Your
health journey
starts here.
Let’s redefine what’s possible and help you live boldly, unapologetically, and vibrantly every single day.