{"id":791,"date":"2026-06-22T05:09:05","date_gmt":"2026-06-22T05:09:05","guid":{"rendered":"https:\/\/healthafter55.com\/blog\/?p=791"},"modified":"2026-06-22T05:09:06","modified_gmt":"2026-06-22T05:09:06","slug":"what-is-prediabetes","status":"publish","type":"post","link":"https:\/\/healthafter55.com\/blog\/what-is-prediabetes\/","title":{"rendered":"What Is Prediabetes and Can You Reverse It Naturally?"},"content":{"rendered":"

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\n \"Richard\n <\/div>\n
\n Written by Richard Wells<\/strong>
\n Founder, HealthAfter55.com \u2014 Richard researches natural health strategies for adults over 55, with a focus on blood sugar, energy, and healthy ageing. He is not a medical professional. Always consult your doctor before making health changes.<\/span>\n <\/div>\n<\/div>\n
\n \"Older
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What is prediabetes<\/strong> \u2014 and what does it actually mean for you? If your doctor has told you your blood sugar is “a little high,” “borderline,” or “in the prediabetes range,” this article gives you the honest, complete answer to that question. Not the watered-down version. The real picture \u2014 including the part most health articles leave out.<\/p>\n

According to the CDC’s National Diabetes Statistics Report, 115.2 million American adults currently have prediabetes \u2014 and 31.3 million of those aged 65 and older, representing 52.1%, have the condition<\/a>. More than 8 in 10 adults with prediabetes do not know they have it. If you are over 55 and have been told your blood sugar numbers are creeping upward, you are in the largest single health cohort in the country.<\/p>\n

Here is the part most articles miss: prediabetes is not a one-way street to type 2 diabetes. A landmark 2025 analysis of 19 large international cohort studies \u2014 involving millions of people \u2014 found that reversion to normal blood sugar was more common than progression to type 2 diabetes among adults with prediabetes. And the Diabetes Prevention Program \u2014 the most important clinical trial on this topic ever conducted \u2014 found that adults aged 60 and older who made lifestyle changes reduced their risk of developing type 2 diabetes by a remarkable 71%. Not 58% like the overall group. Older adults did better, not worse.<\/p>\n

This guide covers everything you need to understand about prediabetes \u2014 what it is, how it develops, what the numbers mean, and what the evidence shows about reversing it naturally after 55.<\/p>\n

\ud83d\uddd3\ufe0f Last reviewed and updated: June 2026<\/em><\/p>\n

\n \u26a1 Quick Answer<\/strong><\/p>\n

Prediabetes means your blood sugar is higher than normal but not yet high enough for a type 2 diabetes diagnosis. It is caused by insulin resistance \u2014 cells not responding properly to insulin \u2014 and is extremely common after 55. The critical fact most people are not told: prediabetes is reversible. A 2025 Lancet Global Health analysis found that more people with prediabetes revert to normal blood sugar than progress to type 2 diabetes. Adults aged 60+ in the Diabetes Prevention Program reduced their diabetes risk by 71% through lifestyle changes \u2014 a better result than younger adults. You have more time and more options than you may have been led to believe.<\/span>\n<\/div>\n

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Get Our Free Guide: 7 Natural Ways to Help Support Healthy Blood Sugar After 55<\/h3>\n

Practical, research-backed strategies for adults over 55 \u2014 including what to do if you have been told your blood sugar is in the prediabetes range.<\/p>\n

Get the Free Guide \u2192<\/a>\n<\/div>\n

\n \ud83d\udccb What You’ll Learn<\/strong><\/p>\n
    \n
  1. What Is Prediabetes? A Plain English Explanation<\/a><\/li>\n
  2. What the Blood Test Numbers Actually Mean<\/a><\/li>\n
  3. How Prediabetes Develops \u2014 and Why It Is More Common After 55<\/a><\/li>\n
  4. Prediabetes Symptoms \u2014 Why Most People Feel Fine<\/a><\/li>\n
  5. What Happens If Prediabetes Is Left Untreated<\/a><\/li>\n
  6. Can Prediabetes Be Reversed Naturally? The Evidence<\/a><\/li>\n
  7. How to Reverse Prediabetes After 55 \u2014 What Actually Works<\/a><\/li>\n
  8. What to Do in the First 30 Days<\/a><\/li>\n
  9. Frequently Asked Questions<\/a><\/li>\n<\/ol>\n<\/div>\n
    \n

    What Is Prediabetes? A Plain English Explanation<\/h2>\n

    Prediabetes is a condition where blood sugar levels are higher than normal \u2014 but not yet high enough to be classified as type 2 diabetes. Think of it as a warning zone: a clear signal that the way your body is managing blood sugar has changed, and that without some deliberate action, the risk of progressing to type 2 diabetes is real.<\/p>\n

    The underlying cause of prediabetes is almost always insulin resistance \u2014 a condition where your cells have stopped responding properly to insulin, the hormone that moves sugar from your blood into your cells for energy. When cells resist insulin’s signal, sugar stays in the bloodstream longer than it should. Your pancreas \u2014 the gland that produces insulin \u2014 tries to compensate by producing more of it. For a while this works, and blood sugar stays roughly normal despite the resistance. But eventually the pancreas cannot keep up, and blood sugar starts climbing. That elevated-but-not-yet-diabetic range is prediabetes.<\/p>\n

    The National Institute of Diabetes and Digestive and Kidney Diseases<\/a> defines prediabetes as blood sugar that is higher than normal but not yet at the diabetes threshold \u2014 a state that indicates the body’s glucose management system is under significant strain but has not yet failed.<\/p>\n

    \n \ud83d\udcca The key distinction:<\/strong> Prediabetes is not “almost diabetes” in the sense that progression is inevitable. It is a biological state that is genuinely reversible \u2014 and the earlier it is identified, the more reversible it is. Most adults over 55 who make consistent lifestyle changes can return their blood sugar to the normal range and keep it there. Understanding this is the most important starting point.<\/span>\n<\/div>\n
    \n

    What Is Prediabetes? Understanding What the Blood Test Numbers Mean<\/h2>\n

    Prediabetes is diagnosed through blood tests, not symptoms. There are three tests your doctor can use, and you may have had one or more of these at a routine check-up without realising they were screening for prediabetes.<\/p>\n\n\n\n\n\n\n\n
    Test<\/th>\nWhat It Measures<\/th>\nNormal<\/th>\nPrediabetes<\/th>\nDiabetes<\/th>\n<\/tr>\n<\/thead>\n
    Fasting blood glucose<\/td>\nBlood sugar after 8+ hours without eating<\/td>\nBelow 5.6 mmol\/L (100 mg\/dL)<\/td>\n5.6\u20136.9 mmol\/L (100\u2013125 mg\/dL)<\/td>\n7.0+ mmol\/L (126+ mg\/dL)<\/td>\n<\/tr>\n
    HbA1c<\/td>\nAverage blood sugar over the past 3 months<\/td>\nBelow 5.7%<\/td>\n5.7%\u20136.4%<\/td>\n6.5% or above<\/td>\n<\/tr>\n
    Oral glucose tolerance test<\/td>\nBlood sugar 2 hours after a sugary drink<\/td>\nBelow 7.8 mmol\/L (140 mg\/dL)<\/td>\n7.8\u201311.0 mmol\/L (140\u2013199 mg\/dL)<\/td>\n11.1+ mmol\/L (200+ mg\/dL)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    The HbA1c test \u2014 sometimes written as A1C or glycated haemoglobin \u2014 is the most commonly used test for prediabetes screening in adults over 55 because it does not require fasting, can be done at any time of day, and reflects average blood sugar over three months rather than a single snapshot. A result between 5.7% and 6.4% means your 3-month average blood sugar has been elevated \u2014 enough to indicate that insulin resistance is present and progressing.<\/p>\n

    \n \ud83d\udca1 What “borderline” actually means:<\/strong> Many doctors use the word “borderline” when blood sugar is in the prediabetes range. This can feel reassuring \u2014 but it can also create a false sense of security. Borderline does not mean “almost fine.” It means your blood sugar is elevated above normal and insulin resistance is present. It is a genuine signal to act, not to monitor and wait. The further into the prediabetes range your numbers sit \u2014 closer to 6.4% HbA1c or 6.9 mmol\/L fasting glucose \u2014 the more urgently action is needed.<\/span>\n<\/div>\n
    \n

    How Prediabetes Develops \u2014 and Why It Becomes More Common After 55<\/h2>\n

    Prediabetes does not appear overnight. It develops gradually, over years, through a process that is driven by insulin resistance \u2014 and after 55, several biological changes accelerate that process significantly.<\/p>\n

    The progressive development of prediabetes<\/h3>\n

    The process typically unfolds over a decade or more. Cells in the muscle, liver, and fat tissue gradually become less responsive to insulin. The pancreas compensates by producing more insulin \u2014 maintaining roughly normal blood sugar but under increasing strain. Eventually, the compensation becomes insufficient. Blood sugar starts rising into the prediabetes range. The pancreas is working harder than it should, and if nothing changes, it will eventually struggle to keep up entirely \u2014 at which point blood sugar crosses into the type 2 diabetes range.<\/p>\n

    The critical insight: the window of prediabetes \u2014 when blood sugar is elevated but not yet diabetic \u2014 is the most important intervention window. The pancreas still has significant function. Blood sugar is still responsive to lifestyle changes. The trajectory is still highly malleable.<\/p>\n

    Why prediabetes accelerates after 55<\/h3>\n

    Four biological changes make prediabetes significantly more likely to develop \u2014 and more difficult to manage \u2014 after 55:<\/p>\n