Prediabetes Isn't Just a Diet Problem: What Women Over 50 Should Know
Being told you are prediabetic and to 'do a little better with your diet' misses the real story: insulin often shifts years or decades before fasting glucose moves. This conversation walks through fasting insulin, HOMA-IR, glucose typing, and the movement and meal-pairing habits that address the underlying pattern.
Overview
Dr. Vonda Wright opens with a frustration she meets weekly in clinic: people are told they are prediabetic, then sent home with nothing more than a suggestion to eat a little better, or worse, to wait and see. Her guest, a registered dietitian and personal trainer, argues that the standard glucose-centric view (A1C and fasting glucose) is looking at the smoke long after the fire started, because insulin typically changes years or even decades earlier.
The pair discuss fasting insulin and HOMA-IR as the fuller picture, and why a continuous glucose monitor only lets you infer what insulin is doing in the background. They introduce the idea of glucose typing, including the compensator: someone whose glucose curve looks beautifully flat because the pancreas is working overtime, which makes fat loss stubborn. For compensators, the emphasis falls on muscle contraction as a way to move glucose without insulin, plus a temporarily tighter carbohydrate range.
For spikers and crashers, the rule is simple: never eat carbohydrates alone, always pair them with protein, healthy fats or fiber. They also cover the movement snack, a ten to twenty minute walk within thirty minutes of eating, and why small bouts spread through the day outperform one single block. The conversation closes with how long to actually wear a sensor, the risk of data anxiety, and the over-the-counter options now available. Throughout, the framing is educational and wellness-oriented, not a substitute for personal medical guidance.
Key quotes
5This is an alarm to be sounded.
It is the fire that has started a long time ago, and now we're just starting to see that smoke.
Is that because my glucose is pretty darn good, or because my pancreas is working overtime pumping out the insulin to keep it that way?
You can shuttle some of that glucose from your bloodstream into your cells without the need for insulin.
That stress from trying to manipulate your glucose data really does the opposite of what it's intended for.
Key ideas
9Prediabetes is treated too casually
Week after week, people arrive knowing they were told they were prediabetic, and the only instruction they remember is to do a little better with their diet. The label lands without a plan attached to it.
The wait-and-see trap
Even more common than vague diet advice is the suggestion to watch the number creep up over time. That waiting period is precisely the window where change is easiest and most effective.
The system is glucose-centric
A1C is a three-month average and fasting glucose is a single snapshot, so both describe the outcome rather than the mechanism. Neither shows how hard the body is working to keep those numbers presentable.
Insulin moves first, sometimes by decades
Insulin often changes years or even decades before fasting glucose drifts. That is why a fasting insulin value can reveal a pattern that standard panels still call normal.
A CGM measures glucose but hints at insulin
A continuous glucose monitor tracks glucose, yet the more interesting question is what insulin is doing behind it. Telltale patterns, like a ledge where blood sugar rises and simply stays high, suggest insulin resistance.
HOMA-IR completes the picture
Reading fasting insulin alongside glucose, expressed as HOMA-IR, tells you far more than either number alone. It distinguishes an easy normal from an expensively maintained one.
The compensator profile
Some women in their forties and fifties show an almost perfectly flat sensor trace, yet carry a fasting insulin around fifteen. The pancreas is showering the body with insulin, which is part of why fat loss feels impossible.
Glucose typing as a practical map
By combining symptoms, lab work and sensor data, you can sort people into recognisable patterns rather than guessing. The type then points to a different set of first moves.
Spikers, crashers, and the two-hour hunger clock
A sharp rise followed by a rapid drop, sometimes below baseline, produces shakiness, sweating and the urge to nap after eating. Feeling ravenous every two hours all day is a recognisable version of the same loop.
Practical takeaways
6- 1
Ask about fasting insulin 3:20
If your glucose looks fine but the story does not add up, a fasting insulin value and HOMA-IR add the missing half of the picture. Bring it up as a question at your next lab review.
- 2
Use muscle contraction as a glucose route 8:40
Contracting muscle helps move glucose out of the bloodstream without leaning on insulin. For a compensator, consistent movement is the highest-leverage daily habit.
- 3
Never eat carbohydrates alone 9:30
Pair them with protein, healthy fats or fibre to blunt the rise and prevent the crash that follows. Protein first is an easy version of the same rule.
- 4
Take a movement snack after meals 10:30
A ten to twenty minute walk, ideally started within thirty minutes of eating, lowers the insulin demand of that meal. Keep it low impact and moderate rather than intense.
- 5
Stack small bouts through the day 11:30
Squats by the printer or a flight of stairs at lunch add up more effectively for blood sugar than one thirty-minute block. Attach the movement to something you already do.
- 6
Wear a sensor to learn, not to obsess 12:10
Two or three sensors are often enough to learn what moves your numbers, then revisit quarterly. Chasing a permanently flat line adds stress that works against the goal.
Topics & chapters
15The prediabetes conversation nobody finishes
Dr. Wright describes patients who know their label but never received a plan. The advice they remember is simply to eat a little better.
Numbers that should sound an alarm
Fasting readings of 95, 110 or 120 are described as the smoke before the fire. The question is why that pattern is met with reassurance.
Why wait-and-see is the wrong instinct
Watching a number creep upward wastes the exact window when change is easiest. The guest calls this the most frustrating part of the whole pattern.
A1C and fasting glucose only go so far
Both describe outcomes rather than effort. The more revealing question is what insulin has been doing in the background.
Insulin changes years before glucose
Insulin can shift decades ahead of a fasting glucose result. This reframes rising glucose as a late signal rather than an early one.
What a CGM can and cannot show
A sensor tracks glucose, so insulin has to be inferred. A ledge where blood sugar rises and stays high is one of the telltale signs.
Fasting insulin and HOMA-IR
Dr. Wright describes tracking her own values over years. The ratio between insulin and glucose tells the fuller story.
Meet the compensator
A woman doing everything right shows a completely flat sensor trace, yet her fasting insulin sits around fifteen. The flat line was an illusion.
Why compensating makes fat loss hard
A body constantly bathed in insulin resists fat loss regardless of effort. The background information changes what intervention makes sense.
Glucose typing explained
Symptoms, labs and sensor data are combined to identify a pattern. The type determines which lever to pull first.
What the compensator does
Movement takes priority, including gentle aerobic work, alongside a temporarily tighter carbohydrate range. The tightening is a short-term reset, not a permanent rule.
What the spiker and crasher does
Carbohydrates never travel alone. Pairing them with protein, fat or fibre softens the rise and prevents the rebound low.
The movement snack
A short walk within thirty minutes of eating puts the fuel to use. Intense training right after a meal is discouraged.
Habit stacking beats one big block
Squats by the bathroom, stairs at lunch, standing between tasks. Small bouts spread through the day serve blood sugar better.
How long to wear a sensor
Two or three sensors, then quarterly check-ins, suits most people. Over-the-counter options now exist without a prescription.