Dr. Kim Bretz ND - Fundamentals Of Health

People aren't just searching for health information anymore.They're asking AI to interpret it for them.And that's a bigg...
08/02/2026

People aren't just searching for health information anymore.
They're asking AI to interpret it for them.

And that's a bigger shift than it sounds.

Many people ask AI questions like:
• "How do I lose my cortisol belly?"
• "How do I treat my histamine intolerance?"
• "What supplements should I take for my perimenopause brain fog?"

While they may seem simple, we’re increasingly asking AI some of the hardest questions in healthcare - often without realizing what information it's drawing from or how it arrived at its answer. And often, we're asking those questions after our own thinking has already been shaped by algorithms, influencers, podcasts, social media, and previous searches. That combination worries me. Not because AI can't be useful. It absolutely can.

But because the first question we ask matters.

There's a big difference between asking:
"How do I lose my cortisol belly?” and
"What are the most likely explanations for my belly, and what evidence supports each one?"

One begins with a conclusion – that may be wrong. The other begins with curiosity.
AI is often only as good as the question we ask it.

When I read a journal article, I know where it came from.
When I read a random person’s blog, I know where it came from.
When a patient brings me an AI-generated answer, I often don't know what combination of sources produced it - or how the AI weighed them.

That lack of transparency makes evaluation much harder.

As clinicians, I wonder if our role is changing.

We often hear that AI will make clinicians less important. But, I wonder if the opposite is true.

Not because patients can't access information. But because people still needs to help them recognize when a question is unintentionally narrowing their thinking.

I'm exploring this idea in an upcoming presentation on AI, misinformation, and clinical reasoning, and I'd love to hear what others are seeing.

The smartest people I know all have one habit. They sound 𝘭𝘦𝘴𝘴 certain than everyone else.That probably seems backwards....
07/27/2026

The smartest people I know all have one habit. They sound 𝘭𝘦𝘴𝘴 certain than everyone else.

That probably seems backwards.
For a long time, it did to me too.

If someone speaks with absolute confidence, it's easy to assume they know what they're talking about. After all, confidence feels persuasive.

But 𝐜𝐨𝐧𝐟𝐢𝐝𝐞𝐧𝐜𝐞 𝐢𝐬𝐧'𝐭 𝐞𝐯𝐢𝐝𝐞𝐧𝐜𝐞.

AI sounds confident. Influencers sound confident. Plenty of experts sound confident.

And yet, some of the smartest researchers and clinicians I know often sound...surprisingly uncertain.

That used to bother me. Now I think I understand why.

The more deeply someone understands a topic, the more they appreciate its complexity. They know where the evidence is strong, where it's still evolving, and where reasonable people can disagree.

That uncertainty isn't a lack of expertise. It's often a sign of intellectual honesty.

I'm not suggesting we should trust someone simply because they say, "I'm not sure." There are plenty of people who are uncertain because they don't know. But I've become much less convinced that confidence, on its own, deserves my trust.

Instead of asking, "How confident do they sound?" I'm trying to ask a different question:

What has earned my confidence in what they're saying?

If you'd asked me halfway up one of those ski hills whether I was having fun, the answer would have been a very quick "n...
06/29/2026

If you'd asked me halfway up one of those ski hills whether I was having fun, the answer would have been a very quick "no."

It was hot in the full sun. The climbs were relentless. My legs were questioning every decision I'd made. But somewhere along the way I realized something.

We don't always remember experiences because they were enjoyable. We remember them because of who was beside us. And so I kept climbing for the 3-hour max event.

This weekend reminded me that the best part of challenging ourselves isn't usually the finish line. It's the people who make you laugh when you're wondering why you signed up in the first place.

(But in case you're wondering, I never plan on doing that again)

Sometimes the hardest part isn't knowing what to do. It's finding the energy to do it.Over the last couple of days, I've...
06/26/2026

Sometimes the hardest part isn't knowing what to do. It's finding the energy to do it.

Over the last couple of days, I've written two posts. I've voluntarily spent time gardening. I'm making salads & trying new recipes. I'm following through on ideas instead of just thinking about them.

Those things probably don't sound remarkable to many people. But, to me, they are. Because when I was at my most exhausted, it wasn't just that I felt tired. I felt like I'd lost the ability to do the things that normally make me feel like myself. I felt overwhelmed, anxious and like I was losing me.

We often talk about fatigue as if it just means feeling sleepy. But sometimes it steals something much bigger than that. It steals your capacity.

And, for me, that capacity had been disappearing for a while. I got the stuff done that needed to get done, but it felt like I was doing it all while walking through thigh-deep water. And the extras? The things that brought me joy? Those had quietly disappeared.

I knew I was probably iron deficient. I'm in perimenopause with a fibroid. I ski, bike and I'm training for races and mountain treks. It wasn't exactly difficult to come up with a list of reasons why my iron might be low.

The problem wasn't knowing. The problem was doing something about it.

I don't tolerate many oral iron supplements very well (iykyk), and the ones I could take weren't enough to meaningfully move my iron into the range I wanted it to be. They just made me...slightly less iron deficient.

I also happen to be terrified of needles, leaving an infusion – my best option – as a non-starter. Which I realize is a little ridiculous considering I give injections as part of my job, but fears don't have to be rational to be real. So, for months, I knew what I should probably do. I just couldn't bring myself to do it.

Until I realized I was more afraid of staying the way I was than I was of getting the infusion. So, I did it.

It's not that everything is magically better now. I'm still busy. I still have a fibroid. I still have a lot of things on my need-to-do list – and my want-to-do list. Life didn't suddenly become perfect.

And, it's not that I suddenly became more motivated. I had all of these ideas & desires before. I just finally had enough energy to follow through on them.

That, to me, has been the biggest difference.
I have enough energy to participate in my life again.
And that feels like getting a huge piece of myself back.

"𝐈'𝐯𝐞 𝐝𝐨𝐧𝐞 𝐦𝐲 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡"I hear this phrase a lot. And honestly? I believe you.I don't think most people are making health...
06/25/2026

"𝐈'𝐯𝐞 𝐝𝐨𝐧𝐞 𝐦𝐲 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡"
I hear this phrase a lot. And honestly? I believe you.

I don't think most people are making health decisions without trying. They're searching. They're watching reels & videos. They're reading articles. They're asking AI. They're following people they like and trust.

That's research...or at least it's what most of us mean when we say we've done research.

But something has changed over the last few years. When we go looking for information, we're not all starting in the same place anymore. Have you ever noticed that once you watch a few videos about a health topic, your feed suddenly seems full of people saying the same thing?

The articles, videos and creators that show up for me may not be the same ones that show up for you. What we searched yesterday influences what we see today. What we click on influences what we're shown next. Before long, we can end up seeing more and more information that points in the same direction.

That doesn't mean it's wrong. But it does mean we might not be seeing the whole picture.

To me, research isn't just about finding information. It's about trying to find the information you're least likely to come across.
• The studies that didn't find a benefit.
• The clinician who disagrees with the person you've been following.
• The limitations that don't make it into the Instagram reel.
• The evidence that makes you stop and think, "Hmm... maybe this is more complicated than I thought."

Because that's usually where the learning happens.

I don't think good research is about proving yourself right. I think it's about being willing to ask, "𝘞𝘩𝘢𝘵 𝘮𝘪𝘨𝘩𝘵 𝘐 𝘣𝘦 𝘮𝘪𝘴𝘴𝘪𝘯𝘨?"

And that's true whether you're a patient.....or whether you've been doing this professionally for over 20 years.

I know it's something I have to keep reminding myself of too.

A new umbrella review found that collagen supplements may improve skin hydration and elasticity.But here's the question ...
06/24/2026

A new umbrella review found that collagen supplements may improve skin hydration and elasticity.

But here's the question we should be asking:

Does collagen reduce wrinkles?

The answer is less clear.

While some studies have reported modest improvements in wrinkle measures, most studies weren't actually designed to evaluate wrinkle reduction as the primary outcome.

And some of the wrinkle findings are difficult to interpret:

• In one study, wrinkle counts improved on the right side of the face but not the left.
• In another, investigators reported wrinkle improvements, but participants themselves didn't report noticeable improvements in wrinkles, elasticity, or hydration.
• Other studies found improvements in wrinkle depth but not wrinkle volume, or improvements in some wrinkle measures but not others.

That doesn't mean collagen does nothing.

It means we should be careful about assuming that improvements in skin hydration and elasticity automatically translate into visible wrinkle reduction.

My takeaway?

Collagen probably isn't harmful.

But if you're buying it specifically for wrinkle reduction, the evidence is much less convincing than many social media posts suggest.

Yesterday was International Women’s Day.I celebrated by sewing the pads into my sports bras.If you wear sports bras, you...
03/09/2026

Yesterday was International Women’s Day.
I celebrated by sewing the pads into my sports bras.

If you wear sports bras, you know the ones.

Those thin little pads that fall out or fold over in the wash.
Then you’re left trying to shove them back through a tiny opening that never quite works.

Most women hate them.

We’ve been saying the same thing for years:
Just sew them in.

But instead of manufacturers listening, we get the same design again and again.

So yesterday I sat there sewing them in myself.
It’s a small thing.

𝐁𝐮𝐭 𝐢𝐭’𝐬 𝐚𝐥𝐬𝐨 𝐧𝐨𝐭.

Because when the small things women say get ignored long enough, it tells you something about the bigger things too.

Stop telling women how to dress so bad things don’t happen.
Stop paying women less for the same work.
Stop undervaluing the unpaid labour women carry at home.

And stop pretending women are the problem when the system simply refuses to listen.

Stop letting men take women’s ideas and profit from them.
Stop not believing us.
Stop selling women “stress supplements” when what we actually need is help carrying the load.

And when men cause harm — real harm — stop protecting them. Hold them accountable.

International Women’s Day matters.

But honestly?
I wish it didn’t.

I wish we didn’t need a day to talk about fairness, safety, and respect.
I wish the changes had already been made.

Until then, women will keep doing what we’ve always done:
Fixing things ourselves.

I’d love to hear the small things women have been saying for years that still haven’t changed.

This photo looks like an ending.It wasn’t.Last week, I spoke at an alumni career night.I was invited to talk about what ...
02/11/2026

This photo looks like an ending.
It wasn’t.

Last week, I spoke at an alumni career night.
I was invited to talk about what I do now and how my career progressed.

Instead, the room was filled with fear.

Students worried they’d chosen the wrong classes.
They'd never figure it out or make it work.
That one decision had already closed doors.

But, before this photo, I had already left a university where I was in the wrong program at the wrong time.

On paper, it made sense.
In reality, I cried through most of those two years.

I transferred with no plan (other than I might have been dating someone at that school...and wasn't by September).
No clear direction.
Just a biology degree and a lot of doubt.

I chose a profession was poorly understood.
Started a business with no business skills, no money — only debt.
Terrified of public speaking.
Late to milestones people quietly compare themselves against.

Most of what looks “right” now felt deeply wrong & scary while I was living it.

So talking to the students, we focused on 𝘸𝘩𝘢𝘵 𝘮𝘢𝘵𝘵𝘦𝘳𝘦𝘥 𝘮𝘰𝘴𝘵 𝘸𝘢𝘴𝘯’𝘵 𝘸𝘩𝘢𝘵 𝘸𝘰𝘳𝘬𝘦𝘥 𝘰𝘶𝘵.

It was letting them know this:

- Confusion isn’t failure.
- Fear isn’t necessarily a red flag.
- And being early in the story can feel a lot like being lost.

If you’re early in your career and scared you’ve already messed it up — you haven’t.

You’re not broken.
You’re not behind.

You’re just in the middle.

I wish someone had told me that sooner.

Stranger danger didn’t disappear.It went digital.Online health advice often comeswithout 𝘺𝘰𝘶𝘳 history, goals, or constra...
02/09/2026

Stranger danger didn’t disappear.
It went digital.

Online health advice often comes
without 𝘺𝘰𝘶𝘳 history, goals, or constraints.

What works for one person
can miss the mark — or cause harm — for another.

Good advice comes from context.
Not confidence.

Last year, I was feeling lost.The world of wellness started to feel misaligned.Midlife was bringing new realities.I was ...
02/05/2026

Last year, I was feeling lost.

The world of wellness started to feel misaligned.
Midlife was bringing new realities.
I was coming out the other side of burnout.
And I was tired of councils, committees, and meetings.

I started paying attention to what I actually needed.

More people.
More community.
More nature.
More movement.

That path led me to volunteering with Special Olympics.

And it has been more than I ever expected.

Being outside in winter.
Showing up consistently.

Watching people put themselves out there with courage, joy, and determination.
Learning from participants (some who are more skilled on skis than I am).
Learning from volunteers who’ve been doing this long before me.

My heart is full.

I’m loving winter again — not because it’s easy,
but because it’s shared with people who care.

Sometimes the thing that heals you
isn’t another framework, protocol, or program.

Sometimes it’s community.

❄️❤️

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Waterloo, ON
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