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Diabetes in South Africa: Prevention and Early Signs

Dr Ethan Chellan26 March 2026Updated 10 April 2026

The Diabetes Epidemic in South Africa

Diabetes is one of the fastest-growing chronic conditions in South Africa, with over 4.5 million people currently affected and many more undiagnosed. Type 2 diabetes accounts for roughly 90% of all cases and is largely preventable through lifestyle modifications and early detection.

Early Warning Signs

Understanding the early warning signs is crucial. Common symptoms include:

  • Excessive thirst and frequent urination (especially at night)
  • Unexplained fatigue
  • Blurred vision
  • Slow-healing wounds or frequent infections
  • Tingling or numbness in the hands and feet
  • Unexplained weight loss

Many people dismiss these symptoms as stress or ageing, which delays diagnosis and increases the risk of serious complications.

Risk Factors

You may be at higher risk if you have:

  1. A family history of diabetes
  2. Are overweight or obese (particularly abdominal weight)
  3. Lead a sedentary lifestyle
  4. Follow a diet high in refined carbohydrates and sugars
  5. Are over the age of 45

South Africa's high rates of obesity and urbanisation contribute significantly to the diabetes epidemic.

Screening and Early Detection

A simple fasting blood glucose test or HbA1c test can identify diabetes or pre-diabetes before symptoms become severe.

At NeoHealth, we recommend annual screening for:

  • All adults over 40
  • Anyone with risk factors (at any age)

Prevention

Prevention centres on sustainable lifestyle changes:

  • Maintain a healthy weight
  • Exercise at least 150 minutes per week
  • Choose whole grains over refined carbohydrates
  • Increase vegetable and fibre intake
  • Limit sugary drinks

If you have been diagnosed with pre-diabetes, these changes can significantly reduce your risk of progressing to full diabetes. Book a screening at NeoHealth to know your numbers.

Frequently Asked Questions

What are the early signs of diabetes?

Common early signs include excessive thirst, frequent urination (especially at night), unexplained fatigue, blurred vision, slow-healing wounds, tingling in hands and feet, and unexplained weight loss. Many people dismiss these as stress or ageing.

How is diabetes diagnosed?

Diabetes is diagnosed through a fasting blood glucose test or an HbA1c test. These simple blood tests can identify diabetes or pre-diabetes before symptoms become severe.

Can type 2 diabetes be prevented?

Yes. Type 2 diabetes is largely preventable through lifestyle changes including maintaining a healthy weight, exercising at least 150 minutes per week, choosing whole grains over refined carbohydrates, and limiting sugary drinks.

About the Author

Dr Ethan Chellan

Dispensing General Practitioner & Co-founder

Stellenbosch graduate. Born and raised in Tulbagh, trained in the rural Eastern Cape. CMSA Diplomas in Child Health and HIV Management, FPD Mental Health certification. Your first point of contact for...

MBChB (Stellenbosch University)

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