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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

Einstein's gravitational waves as creative as Bach's music, says UFS physicist
2016-02-19

Description: Gravitational waves  Tags: Gravitational waves

Profile of the gravitational waves of the colliding black holes.

Prof Pieter Meintjes, Affiliated Researcher in the Department of Physics at the University of the Free State, welcomed the work done by the Laser Interferometer Gravitational-Wave Observatory (LIGO) science team.
 
For the first time, researchers from two of the American Ligo centres, in Washington and Louisiana respectively, observed gravitational waves directly, 100 years after Albert Einstein said they existed. "My study field in astrophysics involves relativistic systems. Therefore, Einstein's view of gravity is crucial to me. I consider the theory as the highest form of human creativity - just like the music of JS Bach. Over the past 100 years, the theory has been tested through various experiments and in different ways.
 
“The discovery of gravitational waves was the last hurdle to overcome in making this absolutely unfaltering. I am therefore thrilled by the discovery. It is absolutely astounding to imagine that the equations used to make the predictions about the gravitational-wave emissions when two gravitational whirlpools collide - as discovered on 14 September 2015 by LIGO - are basically Einstein's original equations that were published way back in 1916 - in other words, 100 years ago.
 
“The LIGO detectors have been operational since the early 1990s, but they had to undergo several stages of upgrades before being sensitive enough to make detections. LIGO is currently in its final stage, and is expected to function at optimal sensitivity only within a year or two. To be able to conduct the measurements at this stage is therefore a fantastic achievement, since much more funding will certainly be deposited in the project,” Prof Meintjes says.

Description: Prof Pieter Meintjes Tags: Prof Pieter Meintjes

Prof Pieter Meintjes
Photo: Charl Devenish

The search for gravitational waves by means of the Square Kilometre Array (SKA) is one of the focus points in research by both Prof Meintjes and PhD student, Jacques Maritz. This involves the study of radio signals from pulsars that might show signs of effects by gravitational waves. They are looking for signs of gravitational waves. The gravitational waves discovered and studied in this manner would naturally vary much more slowly than the signal discovered from the two colliding gravitational waves.
 
The discovery will definitely provide renewed impetus to the Square Kilometre Array (SKA) Project to use the dispersion of pulsar signals, and to search for the impact of gravitational waves on signals as they travel through the universe. According to Prof Meintjes, the SKA will definitely contribute fundamentally to the Frontier research, which will provide a good deal of publicity for the UFS and South Africa, if significant contributions are made by local researchers in this field.

Video clip explaining gravitational waves

 

  • The Department of Physics will present a general, non-technical talk concerning the recent detection of gravitational waves by the 2 Laser Interferometer Gravitational Wave Observatories (LIGO):

Wednesday 24 February 2016
11:00-12:00
New lecture auditorium, Department of Physics

 

 

 

 

 

 

 

 

 

 

 

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