Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
17 September 2020 | Story Prof Corina Walsh | Photo Sonia du Toit (Kaleidoscope Studios)
Prof Corinna Walsh is from the Department of Nutrition and Dietetics and an NRF C-rated researcher at the University of the Free State.

The COVID-19 pandemic highlighted the challenges of food insecurity, hunger, and malnutrition that existed prior to the outbreak, but which are now affecting more individuals and households. During June 2020, three organisations – the Nutrition Society of South Africa (NSSA), the Association for Dietetics in South Africa (ADSA), and Dietetics-Nutrition is a Profession (DIP) – joined forces to call on the government to address malnutrition in all its forms. Prof Corinna Walsh from the Department of Nutrition and Dietetics at the University of the Free State (UFS) is the President of the Nutrition Society of South Africa, which aims to advance the scientific study of nutrition to promote appropriate strategies for the improvement of nutrition well-being. 

The call confirms that good nutrition is an essential part of an individual’s defence against disease and explains that malnutrition, in the forms of both over- and undernutrition, is closely related to an increased risk of illness and death, which has a considerable economic and societal impact. The Coronavirus pandemic has emphasised the importance of food security and nutritional well-being for all South Africans and has exposed the vulnerability and weaknesses of our food systems. 

How big is the problem of malnutrition in South Africa and what impact has the Coronavirus had on this situation?

The call highlights that undernutrition co-exists with the rising incidence of overweight and obesity (frequently in the same household) and resultant non-communicable diseases (NCDs) such as type 2 diabetes mellitus and hypertension. In South Africa, more than a quarter of the female adult population is overweight and more than a third is obese; it is estimated that 269 000 NCD-related deaths occur in the country annually. Obesity and NCDs are regarded as major risk factors for COVID-19 hospital admissions and complications. Over the past 20 years, the prevalence of chronic undernutrition in children has not improved, with 27% of children under the age of five being chronically undernourished. Chronic undernutrition in children manifests as impaired growth, referred to as stunting. By the age of two, this impaired growth and deficits in development become more difficult to reverse, resulting in intellectual impairment that compromises children’s school performance and employment prospects. Chronic undernutrition in children furthermore increases their future risk of obesity and non-communicable chronic diseases in adolescence and adulthood.

Although the nutrition situation in the country had been of concern prior to the pandemic, the acute nature and vast extent of the lockdown brought the plight of individuals and communities to the forefront. In addition to hunger and food insecurity and the resultant undernutrition, the pandemic also placed a focus on non-communicable chronic diseases such as obesity, hypertension, and diabetes. These comorbidities, mostly related to overnutrition, are seen to be associated with a more severe form of COVID-19 infection, as well as an increased risk of hospitalisation and death.

 With South Africa’s current economic challenges and the rise of unemployment, is the situation of malnutrition and food insecurity bound to worsen?

Food, water, sanitation, and social security are under severe pressure due to the pandemic. All of these factors are directly related to an increased risk of malnutrition. Further underlying causes of malnutrition include poverty, unemployment, and inequality, which require interventions over the medium and long term. 

The initial hard lockdown had an immediate and acute impact on households and communities in many ways. With regard to food and nutrition, these include interrupted access to food due to restrictions on travelling and informal trading; discontinuation of food and nutrition social programmes such as the National School Nutrition Programme and feeding at early childhood development programmes; increases in food prices and food expenditure; and reduced or lost income.

The pandemic came at a time when global food security and food systems were already under strain due to natural disasters, climate change and other challenges, exacerbating the need to transform food systems to be sustainable and resilient. 

What interventions are suggested to address the problem of malnutrition?

Food relief and social relief interventions, such as food parcels and social grants, could address the more immediate needs, but broader actions are required to address the underlying causes of malnutrition. 

An important first step in the fight against malnutrition will be to recognise the severity of the situation and the need for coordinated strategic efforts to address the underlying factors that contribute to malnutrition, such as insufficient access to food, affordability of fresh foods, poor health services, and a lack of safe water and sanitation. Food security and nutrition should therefore be addressed collectively with interventions aimed at tackling these factors. It will require concerted efforts from the government, the private sector and civil society to address the immediate, underlying, and structural causes of undernutrition. In view of this, the call proposes that interventions include the following:
-           Prioritise nutrition on policy agendas related to health and social security, including a regulatory framework to support access to healthy and affordable foods. Consideration can be given to a basket of subsidised healthy foods and greater regulation of prices of basic foodstuffs.
-           Provide strategic direction and ensure coordinated and aligned programming to address food and nutrition security in collaboration with other sectors, including civil society organisations. Interventions to ensure optimal nutrition should extend beyond the health-care system and should draw on complementary sectors such as agriculture, social protection, early childhood development, education, water, and sanitation.
-           Coordinate an adequate and targeted food and social relief approach, prioritising the most vulnerable and needy for short-term mitigation. Food relief should be standardised and tailored to the nutritional needs of targeted beneficiaries, especially children. 
-           Progress towards universal health coverage to ensure access to quality, essential health care. Focus on delivery of preventive nutrition services as part of the transformation and strengthening of the health system, integrating nutrition into universal health coverage as an indispensable prerequisite for longer-term benefit.
-           Prioritise the challenges faced by specific populations, including the elderly, women (especially women of childbearing age), children, and those with pre-existing medical conditions (most notably HIV/AIDS, TB, and NCDs), drawing on local structures to identify those most in need. 
-           Implement well-funded coordinated strategies to actively address the main drivers of malnutrition, paying attention to food, nutrition, and health, backed by responsive social protection mechanisms.
-           Improve access to quality nutrition care through investment in human resources to increase the number of qualified nutrition professionals, as well as education opportunities for other cadres of workers who provide nutrition services in primary care settings. Each point of contact with the health system should be recognised as an opportunity to direct caregivers to nutrition care and support services, with efficient referral pathways between sectors.
-           Promote nutrition education of the public through targeted and relevant nutrition messaging and communication campaigns.

Opinion article by Prof Corinna Walsh of the Department of Nutrition and Dietetics and an NRF C-rated researcher, University of the Free State.

 

News Archive

To tan or not to tan: a burning issue
2009-12-08

 Prof. Werner Sinclair

“Some evidence exists which implies that sunscreens could indeed be responsible for the dramatic rise in the incidence of melanoma over the past three decades, the period during which the use of sunscreens became very popular,” says Prof. Werner Sinclair, Head of the Department of Dermatology at the University of the Free State. His inaugural lecture was on the topic Sunscreens – Curse or Blessing?

Prof. Sinclair says the use of sunscreen preparations is widely advocated as a measure to prevent acute sunburn, chronic sun damage and resultant premature skin aging as well as skin malignancies, including malignant melanoma. There is inconclusive evidence to prove that these preparations do indeed achieve all of these claims. The question is whether these preparations are doing more harm than good?

He says the incidence of skin cancer is rising dramatically and these tumours are induced mostly by the ultra-violet rays.

Of the UV light that reaches the earth 90-95% belongs to the UVA fraction. UVC is normally filtered out by the ozone layer. UVB leads to sunburn while UVA leads to pigmentation (tanning). Because frequent sunburn was often associated with skin cancer, UVB was assumed, naively, to be the culprit, he says.

Exposure to sunlight induces a sense of well-being, increases the libido, reduces appetite and induces the synthesis of large amounts of vitamin D, an essential nutritional factor. The use of sunscreen creams reduces vitamin D levels and low levels of vitamin D have been associated with breast and colon cancer. Prof. Sinclair says the 17% increase in breast cancer from 1981 to 1991 parallels the vigorous use of sunscreens over the same period.

Among the risk factors for the development of tumours are a family history, tendency to freckle, more than three episodes of severe sunburn during childhood, and the use of artificial UV light tanning booths. He says it remains a question whether to tan or not. It was earlier believed that the main carcinogenic rays were UVB and that UVA merely induced a tan. The increase in UVA exposure could have severe consequences.

Prof. Sinclair says the UV light used in artificial tanning booths consists mainly of pure UVA which are highly dangerous rays. It has been estimated that six per cent of all melanoma deaths in the UK can be directly attributed to the use of artificial tanning lights. The use of an artificial tanning booth will double the melanoma risk of a person. “UVA is solely responsible for solar skin aging and it is ironical that tanning addicts, who want to look beautiful, are inflicting accelerated ageing in the process,” he says.

On the use of sunscreens he says it can prevent painful sunburn, but UVA-induced damage continues unnoticed. UVB blockers decrease vitamin D synthesis, which is a particular problem in the elderly. It also prevents the sunburn warning and therefore increases the UVA dosage that an individual receives. It creates a false sense of security which is the biggest problem associated with sunscreens.

Evidence obtained from the state of Queensland in Australia, where the heaviest and longest use of sunscreens occurred, boasted the highest incidence of melanoma in the world. A huge study in Norway has shown a 350% increase in melanoma for men and 440% for women. This paralleled the increase in the use of UVB blocking sunscreens while there was no change in the ozone layer. It did however, occur during that time when tanning became fashionable in Norway and there was an increase especially in artificial tanning.

Prof. Sinclair says: “We believe that sunscreen use does not directly lead to melanoma, but UVA exposure does. The Melanoma Epidemic is a reality. Sunscreen preparations are not the magical answer in the fight against melanoma and the irresponsible use of these preparations can worsen the problem.”

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
7 December 2009

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept