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Karen Sun, M.D.

@iwc_oc

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Functional & Regenerative Medicine | BHRT Specialist
Hormone Balance • Gut Health • Aging Well

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Did You Miss Our Email?
Established patients: $100 off your GLP-1 + a FREE B-12 shot but only through tomorrow!
Not on a GLP-1? Our B-12 package (buy 4, get 1 free for $60) is available anytime.
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Save 20% on our weight loss category online with code WL20 entered at checkout. Plus a FREE monthly InBody body comp scan through year-end so you know you're losing fat, not muscle.
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Not a patient yet but ready to start? Book a visit. Link in bio.
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#WeightLossJourney #functionalmedicine #holisticmedicine #integrativewellnesscenterofirvine #iwcofirvine #adrenal #guthealth #HRT #functionalmedicine #hormoneoptimization #HRT #TRT
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Fine Print: GLP-1 medications require a prescription and are purchased in-office only for established/existing patients. Other exclusions may apply. Offer ends 9/30/2026!
ㅤ by @iwc_oc

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11 days ago

Back-to-school season is a team effort, and the germs your kids bring home don't just stay with them.
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While they're building immunity to a whole new classroom of bugs, you're the one still showing up for work, carpool, and everything else in between! It's the perfect time to prioritize your own immune support before cold and flu season kicks in. This week, take 20% off our entire Immune Support collection with code: IMMUNE20.
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Link in bio to shop.
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Code expires at midnight on 8/31/2026
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Tags:
Immune support, cold and flu season, parent self care, Integrative Wellness, Supplements, BHRT, adrenal, Functional Medicine in Irvine, Wellness, health, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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2 months ago

☀️Brighten up your day with our "Monday Morning Dose of Sunshine!"☀️
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📸: Karen Y. Sun, M.D.
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Tags:
monday meditation, mindfulness, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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2 months ago

The FDA has announced a voluntary recall of select lots of Major Pharmaceuticals Levothyroxine Sodium Tablets due to sub-potency. If you take levothyroxine, do not stop your medication without speaking with your healthcare provider first. Check the manufacturer and lot number on your prescription bottle and contact your pharmacist if you believe your medication may be affected.
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We wanted to make our patients aware of the recall. If you need an alternative, we can discuss whether a compounded thyroid medication through our trusted pharmacy partner, BelMar Solutions, is appropriate for your individual needs.
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Questions? Contact our office, we're happy to help!
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Tags: Thyroid, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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2 months ago

☀️Brighten up your day with our "Monday Morning Dose of Sunshine!"☀️
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📸: Karen Y. Sun, M.D.
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Tags:
monday meditation, mindfulness, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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2 months ago

☀️Brighten up your day with our "Monday Morning Dose of Sunshine!"☀️
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.
.
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📸: Karen Y. Sun, M.D.
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Tags:
monday meditation, mindfulness, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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3 months ago

☀️Brighten up your day with our "Monday Morning Dose of Sunshine!"☀️
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📸: Karen Y. Sun, M.D.
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Tags:
monday meditation, mindfulness, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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3 months ago

Are you getting enough fiber? Chances are, probably not.
Only 5% of adults meet the recommended daily fiber intake, yet fiber is one of the most important nutrients for supporting gut health, metabolism, and overall wellness.
Fiber Slim+ provides 11 grams of certified FODMAP Friendly® fiber, formulated for gentle digestion and optimal tolerance.
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Why we recommend it:
-Supports digestive health and bowel regularity
-Helps support your body's natural GLP-1 production to promote satiety and curb cravings
-Nourishes beneficial gut bacteria, including Akkermansia and F. prausnitzii, to support microbiome balance and metabolic health
-Provides gentle support for occasional constipation and diarrhea
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At the Integrative Wellness Center, we believe a healthy gut is one of the foundations of long-term wellness.
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Today's the LAST DAY to save 25% OFF Fiber Slim+ and all supplements in our online store! Use promo code USA250 at checkout before midnight.
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#GutHealth #Fiber #Microbiome #FunctionalMedicine #HealthyAging #DigestiveHealth #GLP1 #WeightManagement #Longevity #IWC_OC by @iwc_oc

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3 months ago

As we prepare to celebrate Independence Day, we'd like to let you know about our upcoming holiday hours. We will close early at 1:00 PM on Thursday, July 2, and will be closed on Friday, July 3, in observance of the Fourth of July holiday. Our normal business hours will resume at 9:00 AM on Monday, July 6.
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If you anticipate needing a prescription refill, supplement order, or assistance from our team, we encourage you to contact us before the holiday so we can best accommodate your needs.
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Many of you have reached out asking about our 4th of July sale, and yes, our Independence Day promotion is officially live! Enjoy 25% off all supplements in our online store with promo code: USA250.
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From all of us at Integrative Wellness Center, we wish you and your loved ones a safe, happy, and healthy Independence Day filled with celebration, relaxation, and time well spent with family and friends.
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With Gratitude,
Karen Y. Sun, M.D. & the Integrative Wellness Center Team by @iwc_oc

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3 months ago

We were taught to push through. To call it stress, hormones, “just getting older.” To shrink the conversation down to a whisper and carry the rest alone.

I’m done whispering!

Perimenopause is not a personal failing. It’s not vanity to want to feel like yourself again. And it is not weakness to go looking for the doctor who actually listens — the one who runs the labs, asks the real questions, and treats you, not a chart.

Finding the right functional doctor changed everything for me. So now I say it out loud, for the woman reading this who’s been told it’s all in her head:
It isn’t. You aren’t imagining it. And you don’t have to suffer quietly to prove you’re strong.

Let’s normalize this conversation. Let’s hand each other the names, the resources, the permission to ask for more. Because when one woman stops suffering in silence, she makes it safer for the next one to do the same.

You deserve to feel powerful in your own body again 💋🙌🏼 .
@iwc_oc 🤍
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. #thisis40 #perimenopausesupport #perimenopausehealth #womensupportingwomen by @iwc_oc

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4 months ago

Today, we celebrate the fathers, grandfathers, stepfathers, mentors, and father figures who lead with strength, wisdom, patience, and love.
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Wherever this day finds you, we wish you moments of peace, gratitude, connection, and reflection.
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Happy Father's Day from all of us at Integrative Wellness Center! by @iwc_oc

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4 months ago

☀️Brighten up your day with our "Monday Morning Dose of Sunshine!"☀️
.
.
.
.
.
.
📸: Karen Y. Sun, M.D.
ㅤ
Tags:
monday meditation, mindfulness, BHRT, adrenal, Functional Medicine in Irvine, iwcofirvine, Wellness, health, weight loss, TRT, HRT, Longevity medicine in Orange County, pellet therapy by @iwc_oc

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4 months ago