Diabetes has officially overtaken tuberculosis and HIV as South Africa’s leading underlying natural cause of death, highlighting the growing burden of non-communicable diseases on the country’s healthcare system.
Recent mortality data from Statistics South Africa shows that diabetes mellitus accounted for approximately 27 000 deaths in 2023.
The figures point to a significant shift in South Africa’s disease burden, with chronic conditions increasingly contributing to mortality.
Chairperson of the South African Medical Association (SAMA), Mvuyisi Mzukwa, says the development is a major concern and warns that diabetes should not simply be viewed as the result of individual lifestyle choices.
He identified factors including increasing obesity, physical inactivity, unhealthy diets and high consumption of sugary drinks and processed foods as some of the issues contributing to the growing burden.
He also raised concerns that many people are diagnosed only after the disease has already caused serious complications.
“Chronic disease management must be strengthened at the primary health care level so that patients are diagnosed earlier and managed before they develop costly and life-threatening complications,” he said.
Mzukwa also says more young people are facing diabetes.
“The growing number of younger people developing metabolic conditions is another concern.
“The earlier someone develops diabetes, the longer they are exposed to the risk of serious complications,” Mzukwa said.
According to the International Diabetes Federation estimates approximately 2.3 million adults aged 20 to 79 in South Africa were living with diabetes in 2024, with the number projected to reach about 3.9 million by 2050 if current trends continue.
For people living with diabetes, however, the condition is about far more than statistics.
It can affect education, social relationships, mental wellbeing and everyday life.
One young South African knows this experience all too well.
Diagnosed with type 1 diabetes in June 2020 while in Grade 10, Paballo Moffat was just 15 years old when her life changed.
By the time she was diagnosed, she says she knew that the condition had already been present in her body for approximately six or seven months.
During that period, she visited doctors several times, but her symptoms were initially attributed to other illnesses.
“I had been going to the doctor a few times before, and they assumed that it was the flu or COVID, perhaps,” she recalls.
She says her symptoms eventually became more severe and for about a month, she temporarily lost her eyesight every morning.
“When I told the doctor, that’s when they thought to test for diabetes because they would not have assumed that I’d be diabetic, and that was my first ICU experience,” she added.
At 15, she said, diabetes was simply not something people expected her to have, despite the symptoms she had been experiencing.
“Nobody would’ve ever associated me with diabetes, even though I displayed all the symptoms,” she said.
Her diagnosis also exposed her to widespread misconceptions about the condition.
Returning to school was particularly difficult because many people did not understand the difference between the various types of diabetes.
She said some people even believed diabetes could be transmitted through close contact.
She explained that type 1 diabetes is an autoimmune condition in which the pancreas stops producing insulin, meaning people living with type 1 diabetes require insulin to survive.
“There are too many misconceptions about diabetes.
“Some people were under the impression that if they surrounded themselves with me, they’d also be infected, she said.
She believes one of the most important misconceptions to address is the idea that diabetes only affects older people or is simply caused by eating too much sugar.
“This can occur to anyone and has nothing to do with age or the amount of sugar a person eats,” she said.
Learning to live differently. Following her diagnosis, she says she had to make significant changes to the way she lived.
With the support of her medical team, including dietitians, she learnt how to count carbohydrates, assess the food on her plate and calculate how much insulin she needed for each meal.
“I had to change my entire lifestyle and eating habits, from the portion size to the way I prepare my meals, she said.
Managing diabetes also became part of her education.
During her matric year, she applied for special concessions to accommodate possible diabetes-related emergencies during examinations.
When it came time to pursue tertiary education, she chose to study online rather than attend university in person.
She said constantly having to explain her condition and the medical devices she used became emotionally draining. By then, she had moved from regular finger-prick testing to using glucose sensors to monitor her blood sugar levels.
She also had to disclose her condition to her institution, register with the disability support services and undergo medical clearance.
Despite these challenges, she stresses that diabetes does not prevent her from doing the things other young people can do.
Fighting stigma and finding community. The condition also affected her social life.
She became more antisocial and avoided romantic relationships, partly because managing diabetes and explaining her condition to others made it difficult to feel as though she could simply live like everyone else.
Online diabetes communities eventually provided a sense of belonging.
Through these communities, she connected with other people living with diabetes and began to understand that the condition did not define her identity.
“I am just a person living with diabetes,” she said.
She later completed an online diabetes advocacy course and began supporting others on the same journey.
Today, she provides peer counselling, particularly to teenagers who have recently been diagnosed, while also assisting adults living with the condition.
Her message to newly diagnosed patients is simple that they are not alone.
A call for greater awareness. Over time, she progressed to using an insulin pump after developing insulin resistance.
Her experience has strengthened her belief that South Africa urgently needs greater diabetes awareness.
She believes the lack of public knowledge can have serious consequences, particularly when people do not understand the type of diabetes they have or how it should be managed.
Mzukwa similarly argues that prevention and management cannot be left entirely to individuals.
Government, the food industry, schools, healthcare professionals and communities all have a role to play in creating healthier environments, he said.
She called for measures to discourage excessive sugar consumption, improve food labelling, regulate the marketing of unhealthy foods to children and make healthier food more affordable.
For individuals, he stressed the importance of early detection, particularly among people who are overweight, physically inactive, have high blood pressure or have a family history of diabetes.
Maintaining a healthy weight, exercising regularly, eating a balanced diet and limiting sugary drinks and highly processed foods can help reduce the risk of type 2 diabetes.
But for people living with type 1 diabetes, awareness must go further. It must include understanding that the condition can affect children and young people, that it is not contagious, and that it requires lifelong access to insulin and appropriate medical care.
For this young woman, raising awareness is now part of her own journey.
After years of learning to manage diabetes herself, she is using her experience to help others navigate diagnosis, treatment and the stigma that can accompany the condition.
According to Dr Elizabeth Cordier, a Family Medicine Registrar, you can have type 2 diabetes for years without experiencing noticeable symptoms, and many South Africans living with the condition may not even know they have it.
This makes waiting until you “feel sick” before getting tested a serious risk.
“A simple blood test can help detect diabetes early, particularly if you are overweight or have other risk factors such as high blood pressure, physical inactivity or a family history of diabetes. Early detection and treatment are important in reducing the risk of serious complications associated with the disease,” she added.

