Insulin Resistance (IR): what it is, why it matters, and how Vitality Health & Lifestyle Screening gives you the power to act.

Insulin resistance (IR) is one of those quietly common health problems that appears to be sitting behind the scenes, both inside your body and within the general medical sphere. In my view, it is a ticking time bomb. Diets full of readily available and addictive, processed foods, high in carbohydrates and sugar, and lifestyle habits (starting at a young age), are driving the issue.

What is insulin resistance and what causes it?

At its simplest, insulin resistance means the body’s cells don’t respond properly to insulin. The pancreas initially compensates by making more insulin to keep blood sugar normal. Blood glucose may stay normal for years while insulin levels climb. Over time, this can lead to high blood sugar and other health problems.

Eventually, chronic insulin spikes cause insulin resistance in all your cells, which then causes widespread oxidation and Inflammation, the cause of most chronic diseases.

That elevated insulin and the underlying metabolic dysfunction are what set the stage for later disease. Recent mechanistic reviews emphasise that IR is not a single-factor problem, it reflects complex inter-organ signalling (liver, adipose tissue, muscle, pancreas, sex hormones and even the gut) and systemic inflammation.

Common, evidence-backed drivers include:

• Excess body fat and visceral/ectopic fat (fat stored around organs), which alters insulin signalling. Weight gain is a dominant, modifiable driver.

  
  

• Sedentary lifestyle and low muscle mass. Regular aerobic and resistance exercise improve insulin sensitivity. Simply taking a 10 minute walk after each meal has a marked impact on insulin levels.

  
  

• Chronic low-grade inflammation and dysregulated adipose tissue biology. Inflamed fat produces signals that blunt insulin action.

  
  

• Gut microbiome and metabolites. New 2023 studies show altered microbial carbohydrate metabolism and metabolites are linked with IR and inflammation.

  
  

• Age. Insulin resistance tends to increase with age in many people, and genetic predisposition can affect how susceptible someone is.

  
  

Understanding that IR is multifactorial is helpful because it means there are many levers you can pull - lifestyle changes, body composition, sleep, stress management, and when needed, medicines, rather than a single “fix.”

Reversibility matters. Put simply, IR raises your long-term risk, but the risk is responsive to intervention — which is precisely why earlier detection through screening is valuable. There is evidence that applying the recommendations provided during the screening process, can bring IR down to optimal levels within 10 weeks.

What chronic conditions is IR associated with?

It’s not a disease you “feel” early on, but mounting research shows that high levels of IR are associated with a significant increased risk of impairment and a driver of the following chronic diseases and conditions. 88% of the middle East, East Asia and the Western world have some form of Insulin Resistance:

• Dementia and Alzheimer's. Elevated IR levels are linked to a 75% higher risk of cognitive decline in various studies).

  
  

• Depression, anxiety, mood disorders. A high IR is linked to a 41% increased prevalence of depression in adults. This relationship is consistent across age, sex, and diagnostic methods. Stanford University study finds about 1 in 3 adults have this problem, a silent time bomb that doubles their risk for serious depression.

• In people with major depressive disorder, high IR is associated with a 142% increased likelihood of psychotic symptoms.

  
  

• Infertility, erectile disfunction and Poly Cystic Ovaries, are all increased by the affect of raised IR on the capillaries.

  
  

• An increased risk of Cardio Vascular disease and a weaker ageing heart by 69% over 10 years.

  
  

• High blood pressure.

  
  

• A 100% increased risk of fat gain around the abdomen, visceral fat and diabetes.

  
  

• An increased risk of insomnia and sleep apnea, weakened metabolism and digestive problems.

  
  

• 92% of people with tinnitus have high levels of IR.

• Changes in womens' hormones during perimenopause, menopause and post menopause have been found to increase their risk of IR.

  
  

• IR is linked to an increased risk of Diabetic Retinopathy (DR). Studies show the IR serves as an independent risk factor, especially in middle-aged and elderly people. It can also help predict vision-threatening diabetic retinopathy.

  
  

• IR values are significantly associated with an increased risk of  Central Retinal Artery Occlusion, (Eye stroke) and also cataracts.

  
  

• Most inflammatory skin disorders, including psoriasis are IR related.

• There is research that shows tumours have more Insulin Receptors so they will grow faster. It is insulin that tells cells to grow.

  
  

• Vaping increases IR. Hyper heated molecules create the inflammatory effect.

Early signs of insulin resistance are often subtle or absent. Have you noticed any of the following in yourself?

• Increased tiredness or fatigue.

• Difficulty concentrating or "brain fog".

• Emotional swings, anxiety and depression.

• Increased hunger, especially soon after meals.

• Cravings for carbohydrates or sugar.

• Unexplained weight gain, particularly around the waist.

• Dark, velvety patches of skin (acanthosis nigricans), often on the neck, armpits, or groin.

• Skin tags.

• High blood pressure or abnormal cholesterol/triglyceride levels, often found during routine checkups

The good news: IR is detectable long before full-blown illness appears, and lifestyle changes (and targeted medical care when needed) can meaningfully reduce risk. The Vitality Health & Lifestyle Screening or the focused Insulin Resistance Screening I offer, are a practical, empowering first step.

How Vitality Screening measures insulin resistance and what screening looks for.

The Vitality Health & Lifestyle Screening process, uses the 'measure → explain → act → retest' model. It combines blood markers from a simple finger prick (including glucose, cholesterol, uric acid and triglycerides), urine markers from a water sample, blood pressure and body composition measures (visceral fat, BMI, muscle, bone mass etc) with a lifestyle assessment. That combination helps identify people who have elevated metabolic risk even before diabetes or disease is obvious.

Practical advantages of a screening:

• You find out if you’re at risk, ideally before symptoms appear.

  
  

• You get a clear baseline and a plan with an immediate personalised report with actionable recommendations. I am also available to support you through the application of recommendations. I recognise that diet and lifestyle changes can be hard and challenging

Bottom line, can you afford not to invest in a screening? Book a screening today and invest in your future health and wellbeing.

You can find more information on the screening process and costs here:

https://www.intoout.co.uk/healthscreening