The Silent Warning Sign Before Diabetes: Lucas Peralles Explains How to Identify and Reverse Insulin Resistance

Diego Velázquez
Lucas Peralles

There is a metabolic stage that often goes completely unnoticed, appearing only during routine blood work long before any formal diagnosis of diabetes. Lucas Peralles, sports nutritionist and founder of the LP Method, explains that insulin resistance represents precisely this silent phase—a metabolic imbalance in which the body’s cells become less responsive to insulin, forcing the pancreas to produce increasing amounts of the hormone to keep blood glucose levels under control.

Unlike established diabetes, insulin resistance rarely causes obvious symptoms and is most often discovered by chance during laboratory tests ordered for unrelated reasons. Given this reality, endocrinology experts emphasize that waiting until a formal prediabetes diagnosis to take action often means losing valuable time for prevention, since intervening at this early stage offers a genuine opportunity to completely reverse the condition.

How can you identify this process before it progresses into something more serious?

Laboratory tests such as the HOMA-IR index, which directly measures the degree of insulin resistance, along with fasting blood glucose, can detect metabolic abnormalities long before noticeable symptoms develop. According to endocrinology specialists, fasting blood glucose levels between 100 and 125 milligrams per deciliter (mg/dL) already suggest prediabetes, an intermediate stage between normal metabolic function and fully developed type 2 diabetes.

Interestingly, even individuals with apparently normal fasting glucose levels may already have early signs of impaired insulin function, highlighting the importance of evaluating a complete set of laboratory results rather than relying on a single measurement. According to Lucas Peralles, this is one of the reasons why comprehensive laboratory assessments are part of the care provided at Peralles Clinic, especially for patients with risk factors such as abdominal obesity, physical inactivity, or a family history of diabetes.

Why does current science consider this condition reversible?

A landmark study published in the New England Journal of Medicine followed individuals who adopted a structured lifestyle intervention program that included 150 minutes of physical activity per week and consistent dietary improvements. The study found an approximately 58% reduction in the relative risk of developing type 2 diabetes during the follow-up period. Considered a milestone in preventive medicine, these findings demonstrate that well-structured lifestyle changes often outperform isolated interventions based solely on extreme calorie restriction.

Lucas Peralles
Lucas Peralles

Lucas Peralles points out that the study’s most important finding is not simply the reduction in diabetes risk itself, but the confirmation that insulin resistance, in most cases, functions as a reversible warning sign rather than a permanent diagnosis. From his perspective, treating this early stage with the appropriate level of attention can help prevent years of future metabolic complications.

Which nutritional strategies have the strongest scientific support for reversing insulin resistance?

Reducing the intake of refined carbohydrates and sugar-sweetened beverages, prioritizing adequate sources of protein and dietary fiber, and achieving gradual weight loss consistently appear in the scientific literature as effective strategies for restoring insulin sensitivity over the course of weeks and months. Regular resistance training also stands out as a highly effective intervention because active muscle tissue uses glucose more efficiently, reducing the burden on the pancreas to produce insulin.

There is no one-size-fits-all nutritional formula, as the ideal carbohydrate intake varies according to an individual’s metabolic profile, physical activity level, and daily routine. This important detail, often overlooked by generalized recommendations, reinforces the personalized approach practiced at Peralles Clinic, founded by Lucas Peralles, where individualized care is considered essential for achieving sustainable improvements in insulin resistance.

How does this understanding change the way patients approach the prevention of metabolic diseases?

Recognizing insulin resistance as a silent yet reversible process completely changes the way patients view routine laboratory testing, which might otherwise seem like a mere formality. Instead of waiting for noticeable symptoms to appear, patients begin to see subtle metabolic changes as valuable opportunities for early intervention, helping prevent progression to fully developed diabetes.

For the specialist in eating behavior, this shift in perspective represents one of the central goals of the metabolic disease prevention approach practiced at Peralles Clinic. According to Lucas Peralles, understanding that the body sends early warning signals—and responding before irreversible damage occurs—is one of the most effective ways to achieve long-term metabolic health, extending far beyond the number displayed on the scale.

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