Opti Metabolics

Alzheimer’s Begins Decades Before Memory Loss.

When does Alzheimer’s begin? Most people would probably point to the moment memory starts to noticeably decline. The research is pointing much earlier.

A 2025 study published in PNAS analyzed data from more than 19,000 people and identified a striking timeline in brain aging.

Around 44: Early changes in brain-network stability may already be emerging.
Around 67: Network destabilization reaches its most rapid period of change.
70+: This is when the cognitive symptoms we traditionally associate with aging and dementia may become increasingly recognizable.

That creates an important distinction: The beginning of biological change and the beginning of noticeable symptoms are not necessarily the same moment. And researchers are increasingly examining metabolism as part of the reason why.

The 2025 study identified neuronal insulin resistance as an important factor associated with this transition in brain-network stability. This connection isn't entirely new.

In a Mayo Clinic study published in Diabetes, researchers found that 81% of patients with Alzheimer's disease had either impaired fasting glucose or type 2 diabetes, compared with 42% of age-matched controls.

That doesn't mean diabetes and Alzheimer's are the same disease. It does mean the relationship between metabolic health and brain health deserves our attention much earlier in life.

Insulin sensitivity. Glucose regulation. Visceral fat. Muscle mass. Inflammation.

These aren't simply numbers or health concerns belonging to different parts of the body. Together, they help shape the metabolic environment in which the brain has to function for decades.

If meaningful changes can begin in midlife, then waiting until someone's memory begins declining means starting the conversation much later than we could have.

44 → 67 → 70+

What happens during those decades matters. At Opti Metabolics, the goal is to help people become curious about their metabolic health while there is still a long road ahead, not simply when something finally feels wrong.

The complimentary Metabolic Discovery Snapshot helps you take recent blood work you already have and look at your biomarkers as a connected metabolic story. It gives you something valuable, a better understanding of what your metabolism may be telling you today.

Your long-term health story is already being written. Start your complimentary Metabolic Discovery Snapshot and acquire the tools needed to start rewriting it earlier: https://optimetabolics.com/snapshot/

Sources
Antal BB, et al. Brain aging shows nonlinear transitions, suggesting a midlife “critical window” for metabolic intervention. Proc Natl Acad Sci U S A. 2025. doi:10.1073/pnas.2416433122.
Janson J, Laedtke T, Parisi JE, O'Brien P, Petersen RC, Butler PC. Increased risk of type 2 diabetes in Alzheimer disease. Diabetes. 2004;53(2):474-481. doi:10.2337/diabetes.53.2.474.

Your Body Is Already Telling the Story. You Just Need to Know Where to Look.

One biomarker can tell you something. A pattern of biomarkers can tell you a story. That’s one of the biggest differences between simply reviewing lab results and truly understanding metabolic health.

Take fasting glucose, for example. Most people have been taught to ask one question: “Is my glucose normal?” That’s an important question. But it isn’t the only one.

In the study we’re highlighting this week, fasting glucose and hemoglobin A1c were the metabolic markers most closely associated with long-term brain aging. But even that finding doesn’t mean glucose should be interpreted alone.

Visceral fat is metabolically active. It influences liver function, insulin resistance, glucose regulation, and inflammation. That means a change in one part of the system can begin showing up across several biomarkers long before any single number tells the whole story.

Glucose doesn’t exist in isolation. Neither does insulin. Neither do triglycerides, HDL cholesterol, liver enzymes, or inflammatory markers. They’re connected.

That’s why, at Opti, we rarely focus on one biomarker by itself. We ask how these biomarkers are moving together, what metabolic systems they may be reflecting, and—most importantly—which direction the overall pattern suggests your metabolism is moving.

We don’t believe metabolic health can be understood by checking one biomarker against one reference range.

Reference ranges answer an important question. Patterns answer another: What may already be changing beneath the surface?

That’s the foundation of the Opti Metabolic Lens. Our goal isn’t simply to tell you whether an individual number is “normal.” It’s to help you better understand the larger metabolic picture your biology may already be revealing. Because your body has been communicating with you all along. Sometimes, you just need to know where to look.

If you’ve had routine blood work completed within the past year, our complimentary Metabolic Discovery Snapshot can give you an educational second look at those results through the Opti Metabolic Lens—helping you understand not just the individual numbers, but the patterns they may be creating together.
https://optimetabolics.com/snapshot/

Two People Can Lose the Same Weight...and Have Completely Different Outcomes

If two people each lose 20 pounds, would you assume they became equally healthy? Most of us probably would. After all, the scale says they achieved the same result.

But your biology doesn't measure success the way a bathroom scale does. Two people can lose the same amount of weight and still experience very different biological outcomes. The scale can tell you how much weight changed. It can't tell you what changed beneath the surface.

One person may lose more subcutaneous fat—the fat just beneath the skin that you can pinch. Another may lose more visceral fat—the deeper fat stored around the liver, pancreas, intestines, and other organs. And that distinction matters.

In the study Dr. Brotzman shared this week, losing weight itself did not predict healthier brain aging. Losing visceral fat did.

The researchers found that sustained visceral-fat loss was associated with less brain atrophy and better cognitive function over time, while changes in body weight and BMI were not associated with those same outcomes.

Why would visceral fat matter so much? Because visceral fat isn't simply stored energy. It's metabolically active tissue. It releases inflammatory signaling molecules into the bloodstream, and because blood leaving visceral fat drains directly to the liver through the portal vein, those signals reach one of the body's most important metabolic organs first and at their highest concentration.

That's one of the reasons visceral fat sits upstream of insulin resistance and other metabolic dysfunction. The scale sees 20 pounds. Biology sees what changed.

That's why, at Opti, we spend less time asking only whether the number went down and more time asking what changed beneath it. Is glucose regulation improving? Are metabolic risk signals moving in a healthier direction? And what story are those changes telling when we look at them together?

Weight can be useful. But it is only one measurement. The scale can't tell you whether your metabolic health is improving. Your biomarkers can provide another important part of the picture.

If you've had blood work completed within the past year, our complimentary Metabolic Discovery Snapshot can help you look beyond individual numbers and begin understanding the metabolic patterns that may already be shaping your health. https://optimetabolics.com/snapshot/

Because better health isn't simply about changing what you can see. It's about improving what you can't.

Health Feels Overwhelming Because You're Being Asked to Solve the Wrong Problem.

If you've ever felt overwhelmed trying to improve your health... You're not alone.

Every day we're surrounded by advice telling us what we should be doing. Try this diet. Take this supplement. Follow this workout. Track this metric. Avoid that ingredient.

None of those things are inherently wrong. But they all assume you're starting from the same place.

The truth is...You're not. Your goals, your habits, your metabolism, and your biology are uniquely yours.

So before asking, "What's the best diet?" or "What's the best workout?"
A better question might be: "What does my body need most right now?"

That's the question we believe deserves more attention. Because once you understand where you are today, it becomes much easier to decide what changes are worth making, and which ones probably aren't.

You don't need to erase everything you've learned. You don't need to start your health journey over. You simply need a clearer understanding of your starting point.

If you've had blood work done within the last year, you may already have the information you need.

Our complimentary Metabolic Discovery Snapshot helps you look at your existing lab work through a different lens, uncovering patterns that can help you better understand your metabolic health and have a more informed conversation with your physician.

No guessing. No starting over. Just a clearer place to begin. Start today: https://optimetabolics.com/snapshot/

When Every Health Expert Has a Different Answer... Where Do You Start?

Trying to figure out how to improve your health can feel overwhelming.

One article says to eat more protein. Another says to focus on plants. One podcast recommends fasting, while another tells you to eat within an hour of waking up. One expert emphasizes cardio; another tells you strength training should come first.

The frustrating part is that there are thoughtful people—and legitimate science—behind many of these recommendations. The problem is that most health advice is designed to speak to everyone.

Your health isn't "everyone." It's uniquely yours.
That's why we believe the best place to begin isn't with another trend. It's with a better understanding of your own biology.

Your blood work may already contain valuable information about how your body is functioning today. Glucose, triglycerides, HDL cholesterol, liver markers and other biomarkers can become much more informative when we stop viewing them as isolated numbers and begin looking for the patterns they create together.

And sometimes, even results that fall within traditional reference ranges can provide useful context about the direction your metabolic health may be moving.

That's an important distinction.

The question isn't simply, "What should I be doing?" A better place to start may be, "What is my biology telling me deserves attention?"

That's where clarity begins.

If you've had blood work completed within the past year, our complimentary Metabolic Discovery Snapshot provides an educational second look at the information you already own. Through the Opti Metabolic Lens, we help you identify patterns, better understand your metabolic health, and make more informed decisions about where to focus next.

No starting over. No chasing another trend. Just a different way of looking at information you may already have.

If you've been wondering where to begin, perhaps the answer isn't another opinion. Maybe it's a better understanding of you. Learn more: https://optimetabolics.com/snapshot/

The Same Blood Work. A Different Question.

Your body has never seen a diagnostic guideline. It doesn't know what fasting glucose qualifies as diabetes. It doesn't know where a medical society chose to draw a diagnostic line. It simply responds to the environment it's given, adapting to the metabolic signals it experiences every day.

That's one of the reasons we think differently about blood work at Opti. The same laboratory results can answer two very different questions.

One asks, "Do I have a disease today?"
The other asks, "Which direction is my metabolic health moving?"

One of the most compelling examples comes from the Whitehall II Study, where researchers observed measurable metabolic changes developing more than a decade before participants were diagnosed with type 2 diabetes.

The biology changed first. The diagnosis came years later. That's an important distinction because it reminds us that metabolic health isn't something that changes overnight. It changes gradually, often long before a diagnosis appears.
That's why we don't believe blood work should only be used to confirm disease.

We believe it can also help identify the direction your metabolism is moving while there's still meaningful opportunity to improve it.

The goal isn't to predict the future. It's to better understand what's happening today so you have the opportunity to influence tomorrow.

If you've had blood work completed within the past year, we'd love to help you see it through a different lens.
Upload your labs for a complimentary Metabolic Discovery Snapshot, and we'll help you understand the patterns your biomarkers may already be revealing: https://optimetabolics.com/snapshot/

Because sometimes, the same blood work answers an entirely different question.

Reference: Tabák AG et al. The Lancet. 2009;373(9682):2215–2221.

The Same Blood Work Can Tell Two Different Stories

Imagine two people looking at the exact same laboratory report. Neither changes a single number. Neither orders additional testing. The only thing that's different is the question they're asking.

For decades, most of us have been taught to ask: "Do these labs show I have a disease?"

That's an important question. Modern medicine has become remarkably good at identifying disease once it reaches established clinical thresholds.

At Opti, we ask a different question. "What direction is this person's metabolic health moving?" That shift changes everything.

The same blood work that says you don't have diabetes today may also reveal early signs of insulin resistance. A cholesterol panel that appears reassuring may still suggest that the metabolic environment surrounding those numbers is beginning to change. The biomarkers haven't changed. The questions have.

That's the foundation of the Opti Metabolic Lens. We don't simply review individual lab values. We look at how they work together to identify patterns that may reveal metabolic changes years before traditional disease becomes obvious.

Because if you can recognize the direction you're moving early enough, you still have the opportunity to change course.
If you've had blood work completed within the past year, upload it for a complimentary Metabolic Discovery Snapshot. https://optimetabolics.com/snapshot/

We'll ask your blood work a different question, and help you better understand the story your biology may already be telling.

Your Blood Work Is Telling a Story

Imagine picking up a novel, opening to a random page, reading a single paragraph, and deciding you know the entire story. Most of us would never do that.

We understand that every chapter builds on the one before it, and that the meaning often comes from the relationships between the characters, not from one paragraph taken in isolation. Your blood work works much the same way.

Every biomarker tells part of the story. But the real insight often comes from understanding how those biomarkers relate to one another.

For decades, much of medicine has focused on asking questions like:
- Is my cholesterol normal?
- Is my blood sugar normal?
- Is this lab value in range?
Those are important questions. But they're not always the most revealing ones.

At Opti, we've learned to ask different questions.
How do these biomarkers relate to one another?
What metabolic processes might they be pointing toward?
What story are they telling together?

Take triglycerides and HDL cholesterol, for example. Individually, each provides useful information. Together, they can provide early clues that insulin resistance may already be developing, often years before someone meets the criteria for diabetes.

Or consider fasting glucose. A value that falls within the laboratory's reference range may seem reassuring on its own. But when viewed alongside triglycerides, liver enzymes, uric acid, waist circumference, and other biomarkers, it may reveal early metabolic changes that deserve a closer look.

That's why we rarely ask whether a single biomarker is simply "good" or "bad."

Instead, we ask: What story are these biomarkers telling together?

That's the foundation of the Opti Metabolic Lens. It's not about finding one abnormal number.

It's about recognizing patterns that help explain what's happening beneath the surface, often years before traditional disease develops. If you've never had your blood work interpreted this way, we'd love to show you.

Our Complimentary Metabolic Discovery Snapshot uses the same systems-based approach Dr. Brotzman applies when evaluating metabolic health. Simply upload your recent blood work, answer a few questions about your health history, and we'll help you better understand the story your biology may already be telling. https://optimetabolics.com/snapshot/

Don't have recent labs? Our Complimentary Metabolic Risk Quiz is a great place to begin: https://app.optimetabolics.com/quiz/metabolic-risk

Because the goal isn't simply to collect more data. It's to ask better questions, so you can better understand your health before disease has a chance to write the next chapter.

The Wrong Question Can Lead to the Wrong Answer

Imagine taking your car to a mechanic because smoke is coming from under the hood.
The mechanic measures how much smoke is coming out, writes the number down, and tells you to come back in six months.

Most of us would probably ask... "That's helpful...but what's causing the smoke?"

That same principle applies to our biology. For years, much of the conversation around heart disease has focused on measuring cholesterol. Cholesterol is an important biomarker, but it's only one piece of a much larger biological system.

A more complete question is: What is happening inside the body that causes cholesterol to become a problem in the first place?

That's where the story becomes much more interesting. Insulin resistance, repeated blood sugar spikes, oxidative stress, chronic inflammation, and even uric acid all interact with one another. They aren't isolated events, they're part of an interconnected biological network that influences metabolic health over years and even decades.

At Opti, we call this looking through the Opti Metabolic Lens. Instead of evaluating one biomarker at a time, we look for patterns and relationships that help explain why your biology is changing, not just what has changed. That's an important distinction.

Because understanding the "why" gives you something far more valuable than another lab result. It gives you a roadmap. If you've never looked at your health this way before, you're not alone. Most people have only been shown individual numbers, not the bigger picture those numbers tell together.

That's exactly why we created the Free Metabolic Discovery Snapshot. Simply upload your recent blood work, answer a few questions about your health history, and we'll show you how Dr. Brotzman and the Opti Metabolic Lens interpret the patterns beneath the surface. You may discover strengths you didn't know you had, along with areas where early metabolic drift may already be developing, even if your lab results have been labeled "normal."

https://optimetabolics.com/snapshot/

If you don't have recent blood work, that's okay too.

Our Free Metabolic Risk Quiz takes just a few minutes to complete and can help you better understand your current level of metabolic risk while introducing you to the same systems-based approach we use with our members.

Better health doesn't begin with more information. It begins with understanding your biology.

Learn where you stand with a Free Metabolic Discovery Snapshot or take our Free Metabolic Risk Quiz today: https://app.optimetabolics.com/quiz/metabolic-risk

Why Your Body Doesn't Need More Antioxidants...It Needs Less Damage

Most conversations about antioxidants begin with the same question: "What should I take?"

At Opti, we think there's a more important question. "Why does my body need so many antioxidants in the first place?"

Your body already produces glutathione, its primary antioxidant. Its job is to help defend against oxidative stress before damage accumulates.

The challenge is that modern lifestyles place tremendous demand on that system. Frequent blood sugar spikes, diets built around ultra-processed foods, and high consumption of added sugars all increase oxidative stress, forcing your body's natural defenses to work harder.

That's one reason we pay close attention to GGT.

Rather than viewing it only as a liver marker, we also interpret it through the Opti Metabolic Lens, as one clue to how much oxidative stress your body may be managing and how your biology may be responding.

That's also why we believe biomarkers should never be interpreted in isolation. The goal isn't simply to improve one lab value. It's to understand the biological processes driving those values in the first place.

If you've had bloodwork completed within the past year, our free Metabolic Discovery Snapshot helps connect your biomarkers into a clearer picture of your metabolic health, and what they may already be telling you: https://optimetabolics.com/snapshot/