Acne Nutrition For Adult Women | Katie Stewart Wellness
Katie Stewart Wellness

10 yrs in practice·4,000+ labs reviewed·#1 nutrition podcast on Apple (2025)

Functional Nutrition for Adult Acne.The acne solution women find after spending $5,000.

We test what your derm doesn't, find what's actually driving your breakouts, and build a 1:1 protocol from your real results. 3,000+ women cleared in 15 countries. Options from $47.

Built for women who've been burned before. Built around your real labs, not someone else's plan.

As seen in Glamour · OK! · Life & Style · Evie

Katie Stewart, Acne Nutritionist
#1 Apple Podcasts · Nutrition · 202510 Years in Practice

3,000+

Clients Worldwide

15+

Countries

4,000+

Functional Labs

#1

Apple Podcasts · Nutrition

10

Years in Practice

Featured For Her Work On Acne In

GlamourLA WeeklyEvieGaloreOK!Us Weekly

You've Been Here Before

You've done everything right. Your skin still won't cooperate.

Most people who come to us have spent years chasing solutions that address the symptom and never the source. The answer has been there all along. We just need to look in the right place.

If 3 or more sound like you, The Clear Skin Solution was built for this.

See How the Program Works

You've been on antibiotics more than once and the breakouts always came back.

You've overhauled your skincare routine multiple times with minimal lasting change.

You've tried elimination diets and still can't pinpoint your triggers.

Dermatologists offered birth control or Accutane. Nothing that actually investigates root causes.

You're doing everything right and still waking up to new breakouts.

You've lost years of your life to this. You want to know why. Not just what to put on it.

You came off birth control and your skin has never been the same.

The Katie Stewart Wellness team reviewing functional lab work

4,000+

Functional labs reviewed

The KSW Method

Most acne approaches guess. We test.

Using advanced functional lab work (hormone panels, gut analysis, inflammation markers, and nutrient status), our team identifies exactly what's driving your breakouts. Then we build a nutrition protocol for your biology. No guessing. No generic advice.

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Functional Lab Testing

Advanced panels most GPs never order. Hormone markers, gut microbiome, liver function, inflammation, and nutrient deficiencies.

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Root-Cause Nutrition

A personalized protocol based on your results. Not an elimination diet copied from someone else's plan.

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Lasting Results

Clear skin that lasts. Not 6 weeks of relief and back to square one. We change the internal environment so breakouts stop returning.

"I'd been wanting to get a hair test forever. The test was easy to do and the instructions were straightforward. Joanna did my consult and took her time to help me really understand my results. My blood labs always showed fine and clearly I'm not. Highly recommend."

Jackie Neilson, HTMA Client

See the Functional Lab Testing Packages

Client Results

The proof is in the results.

Real clients. Real root causes. Real, lasting change.

In The Clear Skin Solution, 65% of clients clear within 6 months and 85% within nine. Chronic and complex cases can take longer. Every result below is rooted in a client's own lab data and a personalized protocol, never a guarantee or a one-size-fits-all plan.

Before

After

Amanda

The Clear Skin Solution Client

Before

After

Emily

The Clear Skin Solution Client

Before

After

Faith

The Clear Skin Solution Client

Before

After

Lizzie

The Clear Skin Solution Client

Before

After

Angela

The Clear Skin Solution Client

Before

After

Aya

The Clear Skin Solution Client

Before

After

Emily

The Clear Skin Solution Client

Before

After

Ariana

The Clear Skin Solution Client

In Their Own Words

This is what changes when you find the root cause.

12 years of acne → cleared in under 6 months

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After 12 years of struggling with acne ranging from moderate to severe, the Clear Skin Solution cleared my skin in under 6 months. I have the knowledge and tools necessary to combat breakouts when they do occur, thanks to the program.

Z

Zoe

The Clear Skin Solution Client

GI Map revealed what no dermatologist caught

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Once we got my GI Map results I did my first therapeutic protocol and right away the redness and inflammation of my face and other systems started to lessen. This program has been SO worth it. I have more control over my body.

MC

Mireille C.

The Clear Skin Solution Client

HTMA showed what blood labs missed

"

KSW and her team are so knowledgeable, trustworthy and effective at communicating. The nutritionist Liana that I had my HTMA call with was amazing. She broke down everything, answered all my questions, and had my full report ready hours later.

KS

Kristen S.

HTMA Client

Years of failed protocols → first thing that worked

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I'd been to three derms and done two rounds of Accutane and was on antibiotics for years. Acne always came back. Doing the work in CSS was life-changing. My skin finally cleared up by month 8. Almost 10 months out and it's still great.

LS

Leah S.

The Clear Skin Solution Client

Free Download · Acne Face Map

Your breakouts aren't random. They're a map.

The exact map I use to translate where your breakouts show up into what’s actually going on internally. Free, instant, and the start of finally figuring out your skin.

Get the Free Acne Face Map

Plus weekly emails on gut, hormones, detox, nervous system, and skin barrier.

Find Your Path · 30 Seconds

Not sure where to start? Answer 4 questions.

Tell us where you are right now and we'll show you the path that fits, whether that's a $47 course, advanced testing, or 1:1 work with our team.

Question 1 of 4

How long have you been dealing with adult acne?

Or browse all three paths below

The Framework

The 5 Acne Clearing Pillars

Every protocol our team builds is grounded in five interconnected systems: Gut, Detox, Hormones, Nervous System, and Skin Barrier. Miss one and you're still guessing.

01GUTHEALTH02DETOXIFICATION03HORMONALBALANCE04NERVOUSSYSTEM05SKINBARRIER

Meet Katie

Hi, I'm Katie. I know what it's like to run out of answers.

I spent years struggling with my own skin before I discovered that the answer wasn't in my bathroom cabinet. It was in my lab work. That experience shaped everything our team now does.

With 10 years in practice, over 3,000 client results across 15 countries, and 4,000+ functional labs reviewed, our team's approach isn't based on guesswork or generic advice. It's built on what the evidence actually shows, one client at a time.

RHNFDN-P10 Years in PracticeKeep It Clear Podcast
Katie's Full Story
Katie Stewart
Keep It Clear with Katie Stewart

#1 Ranked Nutrition Podcast on Apple (2025)

Keep It Clear

Every week, Katie and co-host Cris Brown go deep on the root causes of acne. Gut health, hormones, functional nutrition, stress, and everything in between. Honest, practical, and grounded in science.

From the Blog

Skin, gut, hormones, detox, nervous system. New posts every week.

View All Posts

You do not have to keep guessing.

Ready to find out what's actually driving your breakouts?

Over 3,000 client results across 15 countries. Built on 10 years in practice and 4,000+ functional labs reviewed. The root cause is there. We'll help you find it.

FAQ · The questions we hear most

Acne nutrition, answered.

The questions women ask most when they're trying to figure out whether nutrition can actually clear their skin.

What is acne nutrition?
Acne nutrition is the practice of using diet, targeted supplements, and lifestyle changes to address the internal drivers of acne (hormones, gut, blood sugar, minerals, inflammation) instead of working only on the surface of the skin. A trained acne nutritionist uses functional lab testing to identify which of these systems is actually driving a person's breakouts, then builds a protocol from those results.
Can nutrition really clear adult acne?
For most adult women whose acne hasn't responded to skincare, antibiotics, or birth control, yes. Adult acne is rarely a surface problem. It's usually driven by hormone imbalance, gut dysfunction, mineral deficiencies, or chronic inflammation. When the underlying driver is identified through lab testing and addressed nutritionally, the skin clears. At Katie Stewart Wellness, 65% of 1:1 clients clear within 6 months and 85% within 9 months.
How long does it take to clear acne through nutrition?
Most clients see meaningful improvement within 8 to 12 weeks of starting a personalized protocol. Full clearing typically takes 4 to 9 months, depending on the driver. Hormonal acne and gut-driven acne usually take longer than blood-sugar-driven acne. Anyone promising clear skin in 30 days is either lucky or lying.
What's the difference between an acne nutritionist and a dermatologist?
A dermatologist diagnoses and manages skin conditions with topicals, antibiotics, and prescriptions like Accutane. An acne nutritionist works on the internal systems that produce breakouts: gut health, hormones, mineral status, and inflammation. The two are complementary. Most clients at Katie Stewart Wellness have already worked with a dermatologist and want to address the root cause instead of suppressing symptoms.
Do I need lab testing to clear my acne?
Not always, but it dramatically shortens the timeline. Without testing you're guessing which of the dozen possible drivers is yours. With HTMA, GI-MAP, or DUTCH testing, the actual driver is visible in your data. Katie Stewart Wellness uses functional lab testing in every 1:1 program because guessing is the most expensive way to clear acne.
Is The Clear Skin Solution right for me?
The Clear Skin Solution is the 1:1 acne nutrition program for women who've already tried the skincare aisle, the elimination diet, the dermatologist, and the prescription route, and still have breakouts. It includes HTMA lab testing, a personalized protocol, and weekly support from a credentialed acne nutritionist. It's not the right fit for teens, for clients seeking topical-only solutions, or for anyone wanting overnight results.

Get the free Acne Face Map.

The exact map I use to translate where your breakouts show up into what’s actually going on internally. Free, instant, and the start of finally figuring out your skin.

Plus weekly emails on gut, hormones, detox, nervous system, and skin barrier.

Katie Stewart · Founder

Root-cause acne nutrition backed by functional lab testing, 10 years in practice, and a team dedicated to lasting results.

Based in Ontario, Canada · Working virtually worldwide

Get in Touch

Clear skin from the inside out.

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