Metabolic health and pain ยท St. Louis
Bloodwork at a pain visit is not an upsell. It is half a diagnosis a scan cannot show you.
A disc, a joint or a nerve does not exist in isolation from the rest of your body. Metabolic inflammation and insulin resistance change how much any of them hurts and how fast any of them heals, which is why a lab draw is part of a pain consultation here, not a separate errand.

How does metabolic inflammation make pain worse?
Metabolic inflammation is a low-grade, whole-body inflammatory state driven by excess visceral fat and chronically elevated insulin, and it does not stay contained to the liver and the fat cells that produce it. Circulating inflammatory signaling molecules cross into the nervous system and sensitize it — lowering the threshold at which a nerve fires and amplifying the signal once it does. Two people with an identical disc herniation can have very different pain levels because one of them is also running this background inflammatory load and the other is not. Central sensitization research increasingly treats neuroinflammation as a driver of chronic and widespread pain in its own right, not just a bystander to whatever the scan shows.
Can insulin resistance cause chronic pain?
Insulin does more than manage blood sugar; it is a growth and repair signal, and when tissue becomes resistant to it, repair slows down across the board — discs, tendons, nerve sheaths, all of it. In patients with fibromyalgia, insulin resistance has been directly associated with central pain severity, independent of body weight. That is not a side observation. It is a mechanism: the same resistance that raises blood sugar is also blunting the repair signal a torn or irritated structure needs to quiet down.
What does high blood sugar do to discs and joints?
Discs, ligaments and joint capsules are built largely from collagen, and collagen exposed to chronically elevated blood sugar undergoes glycation — sugar molecules attaching to the collagen fibers and cross-linking them into a stiffer, less elastic structure. In laboratory studies, advanced glycation end-products measurably reduce disc cells’ production of proteoglycans, the molecules that give a disc its cushioning capacity. A disc that is both mechanically stressed and biochemically stiffened by years of elevated glucose is working with less margin than the same disc in a metabolically healthy person, which is one more reason two people with the same MRI can have very different outcomes.
Why do nerves heal more slowly with insulin resistance?
Nerve roots and the small structures around a joint depend on tiny blood vessels for oxygen and nutrients, and insulin resistance damages exactly those vessels first, long before it shows up as a diagnosable vascular disease anywhere else. A nerve root working with a compromised local blood supply resolves its irritation more slowly after a block, an ablation, or simple time, regardless of how correctly the target was identified. This is the biological driver that most often explains a technically correct procedure that still underperforms — it is not that the treatment was wrong, it is that the supply line to the target was already strained.
The spinal Warburg effect
Chronically sensitized spinal cord tissue behaves, in some respects, like tissue under metabolic stress elsewhere in the body — leaning on faster, less efficient energy pathways to keep up with a nervous system that will not turn its alarm signal off. This is the practice’s working model for why chronic pain can become self-sustaining even after the original injury has healed, and it is presented here as a clinical position rather than a single settled citation, because the direct evidence in human spinal cord tissue is still developing. It sits inside the broader, better-established pattern above: inflammation, resistance and impaired circulation all pushing the same nervous system toward staying switched on.
The population numbers
under 7%
of US adults are metabolically healthy on the tighter cardiometabolic criteria applied to NHANES data after 2021. The earlier NHANES 2009–2016 definition put it at under 12.2%, so the figure has roughly halved in a decade. Both are the general population, not a pain clinic’s.
Inside this clinic’s overall population, under 3% meet the same standard. Among its chronic pain patients specifically, under 1% do. Practice-reported figures from our own population, not trial outcomes, and individual results vary — but the gradient is the point: the more entrenched the pain, the more likely metabolic dysfunction sits underneath it, which is exactly the pattern the mechanisms above predict.
What blood tests check for insulin resistance and inflammation?
A pain-visit panel typically looks at fasting glucose and insulin, HbA1c, a lipid profile and markers of systemic inflammation, read together rather than one at a time — a normal glucose with elevated fasting insulin is still insulin resistance, and reading only the glucose misses it. Where the terrain is off, the response is not a separate weight-loss program bolted onto the pain plan; it is dietary and behavioral change scoped to what the labs actually show, run alongside whatever interventional step the joint or nerve itself needs. See sleep, movement and behavior.
Frequently asked questions
Do I need bloodwork even if my pain is clearly from an accident?
Usually yes, because the terrain affects how quickly you recover from the injury itself, not just whether you have a chronic condition — see after a car accident for how that fits into an accident-related workup.
Will you put me on a diet?
Only if the labs support it, and any changes are scoped to what is actually abnormal rather than a generic plan — details on how that is delivered are at sleep, movement and behavior.
Can fixing my metabolic health replace a procedure?
No — it changes how well a procedure works and how long relief lasts, but a structural problem like a compressed nerve root still needs a structural answer. When injections stop working covers how the two interact.
I am not overweight. Does this still apply to me?
Yes — insulin resistance and metabolic inflammation are measured in blood, not on a scale, and normal-weight patients can carry either. About Dr. Padda covers why this practice treats metabolic and pain medicine as one discipline rather than two.
Can you have insulin resistance with normal blood sugar?
Yes. A normal glucose with an elevated fasting insulin is still insulin resistance, and reading the glucose alone misses it. That is why the panel at a pain visit reads fasting glucose and insulin, HbA1c, a lipid profile and inflammation markers together rather than one at a time. It is also why a patient at a normal weight can carry it: insulin resistance is measured in blood, not on a scale.
Does insulin resistance make back pain worse?
It can. Metabolic inflammation lowers the threshold at which nerves fire, so two people with the same disc herniation can hurt very differently. High blood sugar stiffens the collagen in discs and ligaments, and in lab studies it cuts disc cells’ production of the molecules that cushion the disc. Insulin resistance also damages the tiny blood vessels that feed nerve roots, so irritation settles more slowly.
Why does pain keep going after an injury has healed?
Because the nervous system can stay switched on. Inflammation, insulin resistance and impaired circulation all push a sensitized spinal cord to keep sounding the alarm. The practice’s working model, the spinal Warburg effect, holds that this tissue leans on faster, less efficient energy pathways, which helps the pain sustain itself. That is why the plan treats the metabolic terrain, not only the spot that was injured.
Related reading
- Sleep, movement and behavior
- What to expect at the first visit
- When injections stop working
- Peripheral neuropathy
- About Dr. Padda
We will look at your blood before we decide your pain is only structural
Bring recent labs if you have them, or plan on a draw at your first visit. It is part of the same appointment, not a second one.
4479 Woodson Rd, Suite 401
St. Louis, MO 63134
Next to St. Louis Lambert International Airport, off I-70 at Woodson Road.
Sources
- Ji RR et al. Neuroinflammation and Central Sensitization in Chronic and Widespread Pain. Anesthesiology, 2018. PubMed 29462012
- Jiang W et al. Inflammation and histone modification in chronic pain. Frontiers in immunology, 2022. PubMed 36713369
- Pappolla MA et al. Insulin Resistance is Associated with Central Pain in Patients with Fibromyalgia. Pain physician, 2021. PubMed 33740353
- Yokosuka K et al. Advanced glycation end-products downregulating intervertebral disc cell production of proteoglycans in vitro. Journal of neurosurgery: Spine, 2006. PubMed 17048769