Prediabetes: What It Means and What to Do Next
Updated: Sep 2
By Dr. Harman Virk, DO — Board‑Certified Internal Medicine, The Modern Medicine Group (Fresno, CA)
Medical disclaimer: This article is educational and not medical advice. If symptoms are severe, worsening, or you’re worried—seek urgent care or call 911.
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Quick Take
Prediabetes means blood sugar is higher than normal but not yet in the diabetes range. It is a warning, and for many people it is reversible.
It is usually silent. Most people find out from a routine blood test, not from symptoms.
A meaningful share of people with prediabetes go on to develop type 2 diabetes — and lifestyle change substantially lowers that risk.
The evidence favors sustained modest changes over dramatic short-term ones.
Prediabetes also raises cardiovascular risk, so blood pressure and cholesterol get attention at the same time.
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Table of Contents
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1) What the Numbers Mean
Prediabetes is defined by test results, not symptoms. The commonly used ranges:
A1c of 5.7% to 6.4% — this reflects average blood sugar over roughly three months
Fasting glucose of 100 to 125 mg/dL
Two-hour glucose tolerance test result of 140 to 199 mg/dL
Above those ranges is diabetes; below is normal. A single borderline result is usually repeated before conclusions are drawn.
Where you fall inside the range matters. An A1c of 5.8% and one of 6.4% are both prediabetes, but they carry different urgency.
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2) Why It Usually Causes No Symptoms
Blood sugar in the prediabetes range is generally not high enough to produce thirst, frequent urination, or blurred vision. That is why routine screening finds it and people rarely feel it.
The lack of symptoms is exactly why the diagnosis gets dismissed. “I feel fine” is true and irrelevant — the damage from elevated blood sugar accumulates quietly, and the window when change works best is the window with no symptoms.
Some people do notice increased thirst, more frequent urination, fatigue, or slow-healing cuts. Those symptoms should be reported, since they can indicate the number has moved into the diabetes range.
Once blood sugar climbs further, symptoms do start to appear — Modern Medicine’s related article, Early Warning Signs of Diabetes Most People Ignore, covers what they look like.
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3) Who Is More Likely to Have It
Risk factors include:
Being over 45
Carrying excess weight, particularly around the abdomen
A parent or sibling with type 2 diabetes
Physical inactivity
High blood pressure
Abnormal cholesterol, particularly high triglycerides or low HDL
A history of gestational diabetes, or delivering a baby over nine pounds
Polycystic ovary syndrome
Sleep apnea
Certain medications, including steroids
Because prediabetes is common and silent, screening is recommended for adults with risk factors and generally for all adults starting in mid-life. If it has been years since your blood sugar was checked, ask.
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4) What Actually Lowers Your Risk
Large clinical trials have shown that structured lifestyle change reduces progression to type 2 diabetes substantially — in the landmark research, more effectively than medication alone.
The components that carried that result:
Modest, sustained weight loss: A relatively small percentage of body weight, kept off, produced the benefit. Extreme loss was not required.
Regular physical activity: Roughly 150 minutes per week of moderate activity, spread across the week. Walking counts.
Realistic dietary change: Reducing sugary drinks, refined carbohydrates, and portion sizes; increasing fiber, vegetables, and whole foods. The specific plan matters far less than whether you can sustain it.
Sleep: Poor sleep and untreated sleep apnea worsen insulin resistance.
Smoking cessation, which improves insulin sensitivity and cardiovascular risk together.
The pattern behind all of this: sustainable beats aggressive. Changes kept for years outperform changes abandoned in six weeks.
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5) Fresno-Specific Realities
Summer heat: Outdoor walking is impractical for months. Plan indoor alternatives before June: mall walking, indoor tracks, community centers, or home-based routines.
Long work shifts: Agricultural, warehouse, and healthcare shifts make regular meals and activity harder. Practical planning matters more than idealized advice.
Food access and cost: Realistic changes beat aspirational ones. Frozen vegetables count. Cutting sugary drinks is often the single highest-yield change and costs nothing.
Family patterns: Meals are usually shared. Changes that involve the household tend to hold; changes that isolate one person usually do not.
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6) What Your Clinic Visit May Include
At The Modern Medicine Group, a prediabetes visit may include:
Confirming the diagnosis with repeat testing
A1c, fasting glucose, and sometimes a glucose tolerance test
Cholesterol panel, liver function, and kidney function
Blood pressure and weight assessment
Screening for sleep apnea and fatty liver when indicated
Review of medications that may raise blood sugar
A realistic, individualized plan with a specific follow-up interval
Referral to a Diabetes Prevention Program or dietitian
Repeat testing, commonly annually or as your doctor advises
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7) Frequently Asked Questions
Can prediabetes be reversed?
For many people, yes. Sustained lifestyle change frequently returns blood sugar to the normal range and lowers the chance of developing diabetes.
How often should I be retested?
Commonly once a year, sometimes more often depending on your numbers and risk factors. Your doctor will set the interval.
Do I need to cut out all carbohydrates?
No. The focus is on reducing sugary drinks and refined carbohydrates, improving portion sizes, and increasing fiber — not elimination.
I feel completely fine. Is this really a problem?
Feeling fine is expected with prediabetes. The absence of symptoms is what makes the current window valuable.
Will I definitely get diabetes?
No. A significant share of people progress without intervention, and lifestyle change substantially reduces that risk.
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Fresno CTA — The Modern Medicine Group
If a lab result came back showing prediabetes and nobody sat down with you to explain what to do about it, that visit is worth booking.
The Modern Medicine Group confirms the diagnosis, checks the related cardiovascular risks, connects Fresno patients with prevention programs, and tracks the numbers over time.
Visit: 7053 N. Cedar Ave., Fresno, CA 93720
Phone: 559-369-7787
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