Joint Pain and Inflammation: Why Your MRI Isn't the Whole Story

What therapeutic ketosis taught me about joint pain, inflammation, pressure, and why the image on the MRI is not always the whole story.

And then I would go back on the protocol. Not the vague version. Not "cut back a little." Not "I'm trying to be healthier." I mean real therapeutic ketosis, done seriously, the way I've used it with patients for close to thirty years.

And within about two weeks, the cane would often be gone. Within about a month, I was often close to normal again.

That has happened to me too many times for me to call it coincidence. And I have watched versions of the same thing happen in patient after patient for years. That is what this issue is about.

Pain Is More Than Just Structure

I started helping people get into ketosis because of weight and metabolic disease. That was the obvious doorway. People had obesity, insulin resistance, uncontrolled blood sugar, blood pressure problems, the usual modern collection of metabolic trouble. Ketosis helped. Weight dropped. Glucose improved. Appetite calmed down. That part was clear.

What took me longer to understand was that weight was not the whole story.

When I started doing this more seriously in my own middle age, I noticed something I had not gone after directly beginning to improve: my joints. And when I say joints, I do not mean one neat diagnosis. I mean the whole messy neighborhood. Torn meniscus in the knee. Osteoarthritis in the ankle. Low back pain with radiculopathy—that shooting nerve pain down the leg. Polymyositis. Enthesitis, which is inflammation where tendons or ligaments anchor into bone.

Different names. Different structures. Different specialists. Different scans. Same pattern. People would get into therapeutic ketosis, and pain would improve.

The First Thing That Changes: Pressure

When a person goes into real ketosis, the body begins shedding a remarkable amount of stored water. Early low-carb or ketogenic weight loss is heavily water at first because glycogen—the stored form of carbohydrate—holds water with it. Clinically, I commonly see people lose twelve to twenty pounds of water in the first two weeks.

And in my experience, a meaningful part of that fluid seems to come out of the very tissues that hurt.

That is what many painful joints feel like to me. Not just injured. Crowded. Not just inflamed. Pressurized.

There is the structural problem, yes. But layered on top of that is fluid pressure and chronic irritation. In other words: structural problem plus water pressure plus inflammation.

When people enter the SKLeTT Protocol and start shedding that water, the hinge begins to decompress. The pressure on inflamed joint surfaces comes down. Tendons and ligaments are not being crowded by the same degree of swelling. The tissues feel less tight, less jammed, less chemically angry.

The Second Thing That Changes: Fire

But decompression is only the first act. If a person stays on the protocol, the next thing that often changes is the inflammation itself. That usually becomes much more obvious by around four weeks.

This is the phase where the joint does not just feel less crowded. It feels less angry. The back calms down. The neck loosens. The ankle that felt chemically irritated all the time begins to settle. The knee that was not only painful but hot, reactive, and unpredictable starts acting like it belongs to you again.

This is where beta-hydroxybutyrate—BHB, the main ketone body—becomes important. BHB is not just fuel. It is also a signaling molecule. In plain English, that means it does not just get burned for energy. It also tells the body to behave differently.

One of the more important things it appears to do is inhibit the NLRP3 inflammasome. Think of the NLRP3 inflammasome as one of the body's built-in inflammatory alarm systems. It helps the immune system decide when to sound the siren, release inflammatory chemicals, and keep an area on alert.

Experimental research has shown that BHB can inhibit this NLRP3 alarm pathway. When ketones stay high long enough, the chemical "heat" in the system often comes down. That is usually much more obvious by week four than by week one.

The MRI Is a Photograph, Not a Verdict

One of the things that really drove this lesson home for me was years of looking at MRIs. I have seen thousands of patients from work injuries, car accidents, and all the usual mechanical collisions of life. A very large number of them had imaging that looked bad—meniscus tears, degenerative discs, bulges, stenosis, fraying, narrowing, impingement.

And yes, sometimes those findings matter a great deal. But not always in the neat, one-to-one way people imagine.

Then there was one case I never forgot. An elderly patient had an MRI that described her meniscus as "shredded." You would expect a disaster. You would expect misery. You would expect a knee that could barely function.

But her pain did not match the image. That mattered to me. Because it pushed a question that had already been forming in my mind: if the structure looks terrible but the pain is mild, then the structure alone cannot be the whole story.

An MRI can show you structure. It can show you what is torn, frayed, narrowed, worn, or displaced. What it cannot show you directly is how much inflammatory chemistry is active in that moment. How much fluid pressure is building inside the joint. How sensitized the surrounding tissue has become.

The image is real. It is just incomplete.

What My Own Body Taught Me

I did not learn this only from patients. I learned it the way doctors often learn things they take most seriously: I learned it from my own body, over and over again.

There have been times when my eating drifted, my inflammation climbed, and the pain came back. Not vaguely. Not metaphorically. Literally. Cane back out. Joint pain back. Stiffness back. That feeling that everything in the body had tightened, thickened, and become less forgiving.

Then I would go back on the protocol. And the pattern would repeat. About two weeks in, the cane would often be gone. About a month in, I would often be back to normal.

When something turns on and off that many times in your own body, you stop arguing with it. You stop needing one more philosophical debate. You stop calling it a coincidence because the alternative would be emotionally easier. You begin to respect it.

Let Pain Be Your Guide

If I had to leave people with one practical principle from all of this, it would be this: Let pain be your guide.

I do not mean fear every sensation. I do not mean become fragile. I mean respect the signal. Pain is information. Not perfect information. Sometimes it can be exaggerated. Sometimes a sensitized nervous system turns the volume up too high. But very often it is telling you that the tissue is still inflamed, still compressed, still not ready for the demand you are placing on it.

If the fire alarm is still going off and you tape over the speaker, the building is not safer. That is why I tell people not to worship pain, but not to ignore it either. Listen to it. Do not make the area angrier just because you found a way not to hear it for a few hours.

Why This Changed the Way I Work

When I began this work, I thought ketosis was mostly about weight. Now I know better. Weight matters. Of course it does. Less weight usually means less load. But if all I had ever seen was lighter people with the same pain, I would not be writing this issue.

What changed my mind was watching how quickly joints often decompress, how reliably inflammation often settles, and how often function returns before any structural miracle is supposed to have occurred. That forced me to stop thinking about painful joints in such a simplistic way.

It also forced me to stop acting as though every painful MRI finding is destiny. The body is more dynamic than that. And therapeutic ketosis—properly done, rigorously done—has become one of the most powerful tools I know for changing that terrain.

That is one of the reasons I am still so serious about this work after all these years. Not because I enjoy protocols. Because I have used this not just to help people lose weight, but to help them move again. And I have used it on myself enough times to know the difference between wishful thinking and pattern recognition.

Related Articles

• The SKLeTT Protocol Explained — How the six components work together
• Type 3 Diabetes: Why Alzheimer's May Be a Metabolic Disease — Inflammation and the brain
• Why Regular Keto Doesn't Work for Brain Health — The difference between ordinary keto and therapeutic ketosis

Bibliography

1. The ketone metabolite β-hydroxybutyrate blocks NLRP3 inflammasome-mediated inflammatory disease
2. Beta-hydroxybutyrate, an endogenic NLRP3 inflammasome inhibitor
3. Efficacy, Safety, and Tolerability of a Very Low-Calorie Ketogenic Diet in Women with Obesity and Symptomatic Knee Osteoarthritis
4. Incidental Meniscal Findings on Knee MRI in Middle-Aged and Elderly Persons
5. Prevalence of abnormal findings in 230 knees of asymptomatic adults using 3.0 T MRI