• Published on: Sep 26, 2021
  • 3 minute read
  • By: Second Medic Expert

What Is The Meaning Of Pre-diabetic?

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What is the meaning of pre-diabetic?

Pre-diabetes is the stage that comes before type 2 diabetes. If blood sugar levels are high but not yet high enough to be classified as type 2 diabetes, then you are pre-diabetic.

A person may have pre-diabetes if they find it hard to control their blood glucose levels.

It is important to note how long you have had this condition and what your other risk factors are like such as age, history of gestational diabetes, history of cardiovascular disease, family history (genetic heritability), obesity (BMI > 30), physical inactivity.

Pre-diabetic people tend to be insulin resistant or sensitive when they're not eating anything, and the fasting level is high at 138 mg/dl and when they're drinking glucose their fasting level goes up even more and after a meal, their blood sugar goes up higher than 140 mg/dl at least two times in 225.

Someone affected by pre-diabetes has an impaired ability to produce insulin, which is necessary to regulate glucose levels. This could lead to high blood sugar over time. People who are pre-diabetic may suffer from polycystic ovary syndrome (PCOS), normal aging or another illness that causes the pancreas to fail to work properly. A person suffering from pre-diabetes is suffering from high blood sugar levels. A person suffering from diabetes not Type 1 is suffering from high blood sugar levels.

Sometimes people are diagnosed with pre-diabetes instead of Type II Diabetes because it's more common in the population. Pre-diabetes occurs when the body cannot produce enough insulin or process glucose properly to regulate blood sugar, but that can be managed through diet and exercise in most cases.

Type I Diabetes is when a person cannot make any insulin at all, whereas type II might be caused by, for example, an unfortunate metabolic issue or lifestyle change like eating too many sweets or quitting smoking.

Pre-diabetic refers to a person who has blood sugar levels that qualify him or her as "pre-high blood glucose" but not high enough to be considered diabetic yet. Pre-diabetes is a temporary condition in which the body starts to develop insulin resistance, and the cells of your pancreas start secreting more and more of their own insulin to avoid producing too much glucose. Eventually, this becomes counterproductive, the pancreas becomes so resistant it can't keep up with demand anymore, and type 2 diabetes occurs. However, pre-diabetes does not require any treatment because by avoiding junk food and excessive portions (and exercising) you will likely get off pre-diabetics without ever developing diabetes. Pre-diabetes is a term to describe high blood insulin levels that are on the cusp of developing type 2 diabetes but haven't yet.

Type 2 diabetes develops when cells lose their insulin receptors and cannot create enough sugar for themselves. This means the body has to produce more and more insulin in order to get glucose into any cells with remaining insulin receptors (such as muscle or fat cells). Over time, high levels of circulating hormones lead to damage in the small vessels that provide oxygen and nutrients — particularly to kidneys — putting them at risk of failure. This can happen over decades and is referred to as "insulin resistance".

The primary goal for people suffering from pre-diabetes should be lifestyle change: reduce weight. Pre-diabetic means that you are at high risk for developing type 2 diabetes. If you're overweight, have a family history of diabetes, develop gestational diabetes while pregnant, or if it runs in your household then pre-diabetes is more likely to progress into type 2 diabetes.

Pre-diabetic means that a patient has been diagnosed as prediabetic – that is, their blood sugar levels are higher than normal but not yet high enough to be classified as having diabetes. People with pre-diabetes have a greatly increased risk of developing type 2 diabetes and cardiovascular disease. One study found that adults who had one or more characteristics of the metabolic syndrome exhibited a 46% reduction in risk for the development of diabetes over 4 years following blinded diagnosis if they took metformin therapy alone or with other agents, compared to those on placebo therapy. In addition, people with pre-metabolic syndrome specifically were found to have 89?creased risks for this development

The term pre-diabetic is typically applied to patients who have impaired glucose tolerance or who are at risk for developing type 2 diabetes. A patient is considered a pre-diabetic when he or she has high blood sugar levels that may lead to progression into full-blown diabetes, called Type 2 Diabetes Mellitus, but doesn't meet the diagnostic criteria for T2DM. In other words, the cells of this patient's body aren't quite as dysfunctional as those of a diabetic, yet they show signs of dysfunction. This stage falls between normal and diabetic and is sometimes referred to as prediabetes because it puts an individual at "risk" for T2DM development.

A pre-diabetic person is one who exhibits signs that they may be diabetic. The symptoms include stomach pains, frequent urination, and sudden weight loss. Pre-diabetes used to be known as age-related diabetes and are common in adults who are overweight and have high blood pressure or abnormal cholesterol levels. Early-onset of pre-diabetes can lead to both short-term and long-term risks including heart disease, strokes, kidney failure, blindness caused by diabetic retinopathy (Eye) as well as early death for people with type 2 diabetes.

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Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Disease prevention is no longer limited to vaccinations and medical screenings. Modern healthcare increasingly recognises nutrition as one of the most powerful tools for preventing illness before it begins. The role of nutrition in disease prevention is especially important in India, where lifestyle-related diseases account for a large share of premature illness and mortality.

According to the Indian Council of Medical Research (ICMR) and the National Family Health Survey (NFHS-5), poor dietary patterns contribute significantly to rising cases of diabetes, heart disease, obesity and hypertension. Unlike genetic factors, nutrition is a modifiable risk factor, meaning everyday food choices can actively protect health.

 


Why Nutrition Is Central to Disease Prevention

1. Nutrition regulates metabolic health

Balanced diets help maintain:

  • healthy blood sugar levels
     

  • optimal cholesterol balance
     

  • stable blood pressure
     

Disruption in these systems increases disease risk.

2. Nutrition strengthens immunity

WHO highlights that immune function depends heavily on adequate intake of vitamins, minerals and protein.

3. Nutrition controls inflammation

Chronic low-grade inflammation is linked to most lifestyle diseases. Diets rich in whole foods reduce inflammatory markers.

Major Diseases Influenced by Nutrition

Diabetes and Prediabetes

Excess refined carbohydrates and sugar drive insulin resistance.

Preventive nutrition focuses on:

  • whole grains
     

  • fibre-rich vegetables
     

  • adequate protein
     

  • controlled portion sizes
     

ICMR data shows that dietary modification can delay or prevent type 2 diabetes in high-risk individuals.

Cardiovascular Disease

Heart disease remains a leading cause of death in India.

Nutrition impacts:

  • cholesterol levels
     

  • blood pressure
     

  • arterial inflammation
     

Diets low in trans fats and high in fibre significantly reduce cardiovascular risk, as confirmed by WHO and Lancet studies.

Obesity

Obesity increases the risk of multiple chronic diseases.

Preventive nutrition addresses:

  • calorie density
     

  • food quality
     

  • satiety regulation
     

NFHS-5 reports a steady rise in overweight and obesity across age groups.

Hypertension

High sodium intake and low potassium intake contribute to high blood pressure.

Preventive dietary strategies include:

  • reducing processed foods
     

  • increasing fruits and vegetables
     

  • maintaining mineral balance
     

Certain Cancers

Diet influences cancer risk through:

  • antioxidant intake
     

  • fibre consumption
     

  • reduced exposure to carcinogenic compounds
     

WHO estimates that a significant percentage of cancers are preventable through diet and lifestyle changes.

Key Nutrients That Support Disease Prevention

Fibre

Supports gut health, blood sugar control and cholesterol reduction.

Protein

Essential for muscle health, immune function and metabolic balance.

Healthy Fats

Omega-3 fats reduce inflammation and protect heart health.

Micronutrients

Iron, zinc, vitamin D and B vitamins are essential for metabolic and immune regulation.

NFHS-5 highlights widespread micronutrient deficiencies in India, increasing disease vulnerability.

Role of Gut Health in Prevention

The gut microbiome plays a major role in:

  • immune regulation
     

  • inflammation control
     

  • nutrient absorption
     

Fermented foods and fibre-rich diets support healthy gut bacteria, strengthening disease resistance.

 

Why Preventive Nutrition Works Best Early

Nutrition is most effective when applied:

  • before disease onset
     

  • during pre-disease stages
     

  • alongside regular health screening
     

Once disease progresses, nutrition remains supportive but may not reverse damage fully.

Nutrition vs Medication in Prevention

Medication treats disease; nutrition reduces risk.

WHO and NITI Aayog emphasize that:

  • preventive nutrition reduces disease incidence
     

  • lifestyle modification lowers healthcare burden
     

  • early nutrition changes reduce dependency on long-term medication
     

Both approaches work best when combined appropriately.

Workplace and Community Role in Preventive Nutrition

Structured nutrition programs at workplaces and communities:

  • improve awareness
     

  • support behaviour change
     

  • reduce population-level disease burden
     

Lancet studies show that group-based nutrition interventions improve long-term adherence.

 

Common Myths About Nutrition and Disease Prevention

Myth 1: Supplements replace healthy food

Whole foods provide better long-term protection.

Myth 2: Prevention requires extreme diets

Consistency matters more than restriction.

Myth 3: Nutrition only matters after diagnosis

Early nutrition is most effective before disease develops.

Building a Preventive Nutrition Routine

Effective preventive nutrition includes:

  • regular meals
     

  • diverse food groups
     

  • portion awareness
     

  • minimal processed foods
     

  • hydration
     

Small daily choices compound into long-term health benefits.

Long-Term Impact of Preventive Nutrition

Consistent healthy eating leads to:

  • reduced disease risk
     

  • improved energy and productivity
     

  • better immune resilience
     

  • lower healthcare costs
     

  • improved quality of life
     

NITI Aayog identifies nutrition as a cornerstone of sustainable healthcare systems.

Conclusion

Understanding the role of nutrition in disease prevention empowers individuals to take control of their health long before illness develops. Balanced, consistent nutrition reduces inflammation, supports immunity and protects against chronic diseases that burden India’s healthcare system. Preventive nutrition is not about short-term fixes but about building lifelong habits that support health, resilience and longevity.

 

References

  • ICMR – Nutrition and Lifestyle Disease Prevention Reports
     

  • National Family Health Survey (NFHS-5) – Dietary and Metabolic Health Data
     

  • NITI Aayog – Preventive Healthcare and Nutrition Strategy Reports
     

  • WHO – Diet, Nutrition and Chronic Disease Prevention Guidelines
     

  • Lancet – Nutrition and Disease Risk Reduction Studies
     

  • Statista – Dietary Trends and Health Outcomes India
     

  • EY-FICCI – Preventive Healthcare and Nutrition Economics

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