A value that moved from 84 to 97 in a year is inside the range and heading the wrong way. What moves it is body composition, especially visceral fat, carbohydrate timing, post-meal walking, sleep, alcohol, and resistance training. Executive Health Edge reads it against your own baseline at month 0, 6, and 12 and coaches those inputs; anything that warrants a medical decision goes to the program physician.
What the number is
Fasting glucose is the concentration of sugar in your blood after eight or more hours without food. It is drawn on every Executive Health Edge panel as part of the comprehensive metabolic panel, at month 0, 6, and 12.
The conventional cutoffs are under 100 mg/dL normal, 100 to 125 prediabetes, and 126 or above on repeat testing diabetes. Those cutoffs are useful. They are also blunt. A man who went from 84 to 97 in a year has not crossed anything, and he is the man the program is built to catch.
Why one reading is not enough
Fasting glucose is noisy. Poor sleep, a stressful morning, a hard training session the day before, and a late dinner all lift it. That is why the program reads it three ways: against your own prior panels, next to A1c where drawn, and next to your weight trend from the scale. A number moving in one direction across three draws is a signal. A single number is a data point.
What moves it
- Visceral fat. The fat around the organs is a major driver of insulin resistance in men this age. A body composition push is one of the biggest levers on fasting glucose.
- Muscle. Muscle is where glucose goes. Losing it in your 40s and 50s is losing storage capacity. Resistance training three to four days a week rebuilds it.
- Post-meal walking. Ten to fifteen minutes after the largest meal, daily. The cheapest lever on the list.
- Carbohydrate timing. Carbohydrates around training, fewer late at night. Timing beats elimination.
- Sleep. Short or fragmented sleep raises next-morning glucose. The wearable shows it.
- Alcohol. Both directly and through what it does to sleep. It gets a weekly number, not a lecture.
How the program coaches it
Fasting glucose or A1c creeping upward triggers a specific coaching response: carbohydrate timing, post-meal walks, and a body composition push. Calories and protein stay as hard numbers, carbohydrates and fats stay as ranges, and nothing turns into a crash diet, because a crash diet tanks training and the number comes back.
What the research says
The ranges and levers on this page rest on published research. The main sources:
- The cutoffs. The American Diabetes Association defines prediabetes as a fasting glucose of 100 to 125 mg/dL or an A1c of 5.7 to 6.4%, and diabetes as a fasting glucose of 126 mg/dL or more, confirmed by repeat testing when there are no classic symptoms (American Diabetes Association, Diabetes Care, 2025).
- Visceral fat is a risk marker in its own right. Fat around the organs is an independent risk marker for cardiometabolic disease, including type 2 diabetes (Neeland et al., Lancet Diabetes & Endocrinology, 2019).
- Light walking lowers the post-meal spike. Breaking up sitting with light walking significantly lowered post-meal glucose and insulin compared with sitting through (Buffey et al., Sports Medicine, 2022).
- Short sleep worsens glucose handling. Six nights of four hours in bed lowered glucose tolerance compared with the rested condition (Spiegel et al., Lancet, 1999).
What goes to the physician
The coach coaches the lifestyle inputs and does not diagnose. Any value the lab flags, any result the coach is not comfortable coaching around, and any medication question route to the program physician in writing.
This page is coaching information, not medical advice. Questions about medication, hormones, or peptides go to the program physician.