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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

Stem cell research and human cloning: legal and ethical focal points
2004-07-29

   

(Summary of the inaugural lecture of Prof Hennie Oosthuizen, from the Department of Criminal and Medical Law at the Faculty of Law of the University of the Free State.)

 

In the light of stem cell research, research on embryo’s and human cloning it will be fatal for legal advisors and researchers in South Africa to ignore the benefits that new bio-medical development, through research, contain for this country.

Legal advisors across the world have various views on stem cell research and human cloning. In the USA there is no legislation that regulates stem cell research but a number of States adopted legislation that approves stem cell research. The British Parlement gave permission for research on embryonic stem cells, but determined that it must be monitored closely and the European Union is of the opinion that it will open a door for race purification and commercial exploitation of human beings.

In South Africa the Bill on National Health makes provision for therapeutical and non therapeutical research. It also makes provision for therapeutical embryonical stem cell research on fetuses, which is not older than 14 days, as well as for therapeutical cloning under certain circumstances subject to the approval of the Minister. The Bill prohibits reproductive cloning.

Research on human embrio’s is a very controversial issue, here and in the rest of the world.

Researchers believe that the use of stem cell therapy could help to side-step the rejection of newly transplanted organs and tissue and if a bank for stem cell could be built, the shortage of organs for transplants would become something of the past. Stem cells could also be used for healing of Alzheimer’s, Parkinson’s and spinal injuries.

Sources from which stem cells are obtained could also lead to further ethical issues. Stem cells are harvested from mature human cells and embryonic stem cells. Another source to be utilised is to take egg cells from the ovaries of aborted fetuses. This will be morally unacceptable for those against abortions. Linking a financial incentive to that could become more of a controversial issue because the woman’s decision to abort could be influenced. The ideal would be to rather use human fetus tissue from spontaneous abortions or extra-uterine pregnancies than induced abortions.

The potential to obtain stem cells from the blood of the umbilical cord, bone-marrow and fetus tissue and for these cells to arrange themselves is known for quite some time. Blood from the umbilical cord contains many stem cells, which is the origin of the body’s immune and blood system. It is beneficial to bank the blood of a newborn baby’s umbilical cord. Through stem cell transplants the baby or another family member’s life could be saved from future illnesses such as anemia, leukemia and metabolic storing disabilities as well as certain generic immuno disabilities.

The possibility to withdraw stem cells from human embrio’s and to grow them is more useable because it has more treatment possibilities.

With the birth of Dolly the sheep, communities strongly expressed their concern about the possibility that a new cloning technique such as the replacement of the core of a cell will be used in human reproduction. Embryonic splitting and core replacement are two well known techniques that are associated with the cloning process.

I differentiate between reproductive cloning – to create a cloned human embryo with the aim to bring about a pregnancy of a child that is identical to another individual – and therapeutically cloning – to create a cloned human embryo for research purposes and for healing human illnesses.

Worldwide people are debating whether to proceed with therapeutical cloning. There are people for and against it. The biggest ethical objection against therapeutical cloning is the termination of the development of a potential human being.

Children born from cloning will differ from each other. Factors such as the uterus environment and the environment in which the child is growing up will play a role. Cloning create unique children that will grow up to be unique individuals, just like me and you that will develop into a person, just like you and me. If we understand this scientific fact, most arguments against human cloning will disappear.

Infertility can be treated through in vitro conception. This process does not work for everyone. For some cloning is a revolutionary treatment method because it is the only method that does not require patients to produce sperm and egg cells. The same arguments that were used against in vitro conception in the past are now being used against cloning. It is years later and in vitro cloning is generally applied and accepted by society. I am of the opinion that the same will happen with regard to human cloning.

There is an argument that cloning must be prohibited because it is unsafe. Distorted ideas in this regard were proven wrong. Are these distorted ideas justified to question the safety of cloning and the cloning process you may ask. The answer, according to me, is a definite no. Human cloning does have many advantages. That includes assistance with infertility, prevention of Down Syndrome and recovery from leukemia.

 

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