When You've Done Everything and Nothing Is Working
A checklist of the things that are usually missed — and permission to stop assuming it's your fault.
If you're eating well, moving, and your numbers haven't moved, the explanation is usually not effort. Here's the list of things that are typically missed.
The medical ones
Sleep apnea. The single most common missed cause. Substantially underdiagnosed in women, who present with fatigue rather than snoring. It directly reduces insulin sensitivity, and treating it improves glucose. If you wake unrefreshed, get it checked.
Medication effects. Steroids, some diuretics, beta blockers, some antipsychotics and antidepressants all affect glucose. Take your full list to a pharmacist.
Thyroid function.
Cushing's syndrome, which is rare but does present as stubborn glucose with central weight gain and needs excluding by a doctor rather than assumed absent.
Undiagnosed type 1 or LADA. Adult-onset autoimmune diabetes is sometimes misdiagnosed as type 2, and it doesn't respond to lifestyle change in the same way. If you're not overweight and nothing is working, this is worth raising specifically — antibody testing exists.
An A1C that isn't accurate. Anemia, kidney disease, and certain hemoglobin variants all distort it. Ask whether that's possible for you.
The lifestyle ones people don't count
Sleep duration and quality, which is the one most often sacrificed and most consequential.
Alcohol, which is frequently excluded from a mental audit of "eating well."
Stress, which raises glucose directly and isn't optional to fix.
Under-eating, which drives muscle loss and glucose volatility. Eating too little is a real cause of stalled progress and rarely suspected.
Not enough protein, specifically at breakfast.
No resistance training. Cardio alone doesn't build the tissue doing the glucose disposal.
The expectations ones
It hasn't been long enough. A1C is a 90-day average. Six weeks tells you very little.
You're measuring the wrong thing. If your afternoons are steadier, your evenings quieter and your waistband looser, it is working — whatever the scale says.
The target may be wrong. Some people are not going to reach a particular number, and improved control below that number still reduces risk substantially.
What I'd actually do
Ask for a sleep study if you wake unrefreshed.
Take your medication list to a pharmacist.
Ask about antibody testing if you're a normal weight and nothing works.
Track protein for three days honestly.
Add two resistance sessions.
Give it another 90 days before concluding anything.
The thing worth saying
If you've been doing this properly for months and been told to try harder, that advice was wrong. Stalled progress in someone genuinely doing the work is a signal to investigate, not to increase effort.
Try this week: pick the one item on this list you haven't checked, and check it.
Education, not medical advice. Persistently stubborn numbers warrant medical investigation.