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Students need a Sustainable Food System on Campus

14 October 2022 | Story Prof Johan van Niekerk, Dr Ismari van der Merwe, and Ms Elzmarie Oosthuizen | Photo Supplied

Opinion article by Prof Johan van Niekerk, Dr Ismari van der Merwe, and Ms Elzmarie Oosthuizen, Department of Sustainable Food Systems and Development, University of the Free State.

World Food Day is celebrated annually on 16 October to promote global awareness and action to uplift those who suffer from hunger and to highlight the need to ensure access to healthy diets for all. However, in 2022 we are faced with an ongoing pandemic, conflict, global warming, rising prices, and international tensions. All these factors are affecting global food security. Educators have an enormous task to help students develop skills to help build a sustainable world where everyone has regular access to nutritious food.

Although we have progressed towards building a better world, many people have been left behind – people who cannot benefit from human development, innovation, or economic growth. Millions of people worldwide cannot afford a healthy diet, putting them at high risk of food insecurity and malnutrition. But ending hunger is not only about supply. Enough food is produced today to feed everyone on the planet. The problem is access and availability of nutritious food. People worldwide are suffering from the domino effects of challenges that know no borders.

Students have insufficient balance for food

South Africa has seen a significant expansion of student enrolment in the higher education system, with nearly one million students attending one of the 26 public universities. The number of students in South Africa's higher education system is far below other middle-income developing countries. Therefore, the government aims to increase university enrolment to 1,5 million by 2030. However, the cost of attending university greatly exceeds the financial means of most students.

Students must divide their budget between rent, tuition, utilities, and the remaining insufficient balance for food, which ultimately increases their food insecurity risk.

Moreover, the transition of school learners to university students is more complicated than foreseen since lifestyle changes have health implications, where the excitement is combined with stress from pressure to perform well academically in a competitive environment. Research has found that first-year students are exceptionally prone to food insecurity. They have newfound independence and are still learning to cope with the milieu away from home. A study on the Bloemfontein Campus by the Department of Nutrition and Dietetics indicated that students experience considerable problems in managing their tasks, time, and finances. The challenge of reduced social support results in lengthy emotional and physical separation from family and friends, which influences standard eating patterns. The students have poor nutritional knowledge, limited earning potential, and a lack of budgeting skills and resources for healthy food preparation. Finally, sociocultural diversity is another factor to consider. It influences students' food patterns, while the total student population of the UFS, about 37 800 full-time students, reflects a rich sociocultural diversity.

Intake of vegetables, fruit, and protein among students is minimal

When required to earn a degree, food insecurity represents a short period of time, but it can precipitate poor lifelong health behaviour and increased risks of chronic diseases. Prolonged exposure may contribute to the development of obesity. The research found food insecurity is related to poor mental health and academic performance. Students endorse increased rates of depression and anxiety, decreased concentration, and low concentration marks. It leads to lower academic achievement and undermines the goals of tertiary education. The importance of studying the aspects related to students' sustainable food consumption behaviour lies in the fact that, at this age, they begin to develop specific consumption patterns that will have long-term effects.

The average of current first-year students forms part of Generation Zoomers (ages 19-22 years). Generation Zoomers (Gen Z) grew up in specific circumstances, known as the first truly digital natives. They grew up living, working, and socialising with the internet and social media. This generation's economic circumstances are more constrained. The latter is partly due to the rise in university tuition fees. Gen Z forms part of diverse communities seen as networked young citizens, but growing social inequalities often limit their opportunities. This generation is labelled as the stay-at-home generation, with indoor and online socialising on the rise.

During a study by the Department of Sustainable Food Systems and Development on the South Campus of the UFS (student population – ages 19-22 years), we found that the intake of vegetables, fruit, and protein among our students is minimal and will lead to deficiencies. At the same time, rice and pasta are part of their everyday diet. Money to buy these foods is still an immense problem. Students indicated that they would prefer healthy foods when they had the resources to afford it.

No Student Hungry initiative

Gender and student consumption patterns showed that breakfast consumption decreased, with male students consuming breakfast more regularly than females. The results indicated that students preferred soft drinks (energy) and water (available). They argued that the high consumption of fast food is due to its wide availability and accessibility in commercial and informal outlets. The informal vendors make fast food more available and accessible to low-budget student groups due to the lower food prices. The unhealthy consumption movement is driven by aggressive advertising practices and lower costs.

Students consume more saturated fat snacks, refined carbohydrates, sweetened carbonated beverages, and diets that are short in polyunsaturated fatty acids (PUFAs) and fibres. Researchers indicated that these unhealthy diets and the increasingly sedentary lives of students could lead to non-communicable diseases such as type 2 diabetes mellitus and heart disease.

Currently, the department forms part of the NO STUDENT HUNGRY (NSH) initiative by establishing vegetable tunnels on campus. It remains an indispensable objective of the department, though, to increase the proportion of university students who receive information on unhealthy dietary patterns; however, nutrition knowledge has only moderate effects on students' attitudes and behaviours. Therefore, we use our Food Security modules as an effective strategy to educate our student community on sustainable food systems by ensuring skills development. Teaching contextual skills (e.g., how to plan and prepare nutritious meals within time and financial constraints) could address this unhealthy behaviour of the UFS students and work towards the sustainable development goal of NO HUNGER in 2030

News Archive

Eye tracker device a first in Africa

2013-07-31

31 July 2013

Keeping an eye on empowerment

"If we can see what you see, we can think what you think."

Eye-tracking used to be one of those fabulous science-fiction inventions, along with Superman-like bionic ability. Could you really use the movement of your eyes to read people's minds? Or drive your car? Or transfix your enemy with a laser-beam?

Well, actually, yes, you can (apart, perhaps, from the laser beam… ). An eye tracker is not something from science fiction; it actually exists, and is widely used around the world for a number of purposes.

Simply put, an eye tracker is a device for measuring eye positions and eye movement. Its most obvious use is in marketing, to find out what people are looking at (when they see an advertisement, for instance, or when they are wandering along a supermarket aisle). The eye tracker measures where people look first, what attracts their attention, and what they look at the longest. It is used extensively in developed countries to predict consumer behaviour, based on what – literally – catches the eye.

On a more serious level, psychologists, therapists and educators can also use this device for a number of applications, such as analysis and education. And – most excitingly – eye tracking can be used by disabled people to use a computer and thereby operate a number of devices and machines. Impaired or disabled people can use eye tracking to get a whole new lease on life.

In South Africa and other developing countries, however, eye tracking is not widely used. Even though off-the-shelf webcams and open-source software can be obtained extremely cheaply, they are complex to use and the quality cannot be guaranteed. Specialist high-quality eye-tracking devices have to be imported, and they are extremely expensive – or rather – they used to be. Not anymore.

The Department of Computer Science and Informatics (CSI) at the University of the Free State has succeeded in developing a high-quality eye tracker at a fraction of the cost of the imported devices. Along with the hardware, the department has also developed specialised software for a number of applications. These would be useful for graphic designers, marketers, analysts, cognitive psychologists, language specialists, ophthalmologists, radiographers, occupational and speech therapists, and people with disabilities. In the not-too-distant future, even fleet owners and drivers would be able to use this technology.

"The research team at CSI has many years of eye-tracking experience," says team leader Prof Pieter Blignaut, "both with the technical aspect as well as the practical aspect. We also provide a multi-dimensional service to clients that includes the equipment, training and support. We even provide feedback to users.

"We have a basic desktop model available that can be used for research, and can be adapted so that people can interact with a computer. It will be possible in future to design a device that would be able to operate a wheelchair. We are working on a model incorporated into a pair of glasses which will provide gaze analysis for people in their natural surroundings, for instance when driving a vehicle.

"Up till now, the imported models have been too expensive," he continues. "But with our system, the technology is now within reach for anyone who needs it. This could lead to economic expansion and job creation."

The University of the Free State is the first manufacturer of eye-tracking devices in Africa, and Blignaut hopes that the project will contribute to nation-building and empowerment.

"The biggest advantage is that we now have a local manufacturer providing a quality product with local training and support."

In an eye-tracking device, a tiny infra-red light shines on the eye and causes a reflection which is picked up by a high-resolution camera. Every eye movement causes a change in the reflection, which is then mapped. Infra-red light is not harmful to the eye and is not even noticed. Eye movement is then completely natural.

Based on eye movements, a researcher can study cognitive patterns, driver behaviour, attention spans, even thinking patterns. A disabled person could use their eye-movements to interact with a computer, with future technology (still in development) that would enable that computer to control a wheelchair or operate machinery.

The UFS recently initiated the foundation of an eye-tracking interest group for South Africa (ETSA) and sponsor a biennial-eye tracking conference. Their website can be found at www.eyetrackingsa.co.za.

“Eye tracking is an amazing tool for empowerment and development in Africa, “ says Blignaut, “but it is not used as much as it should be, because it is seen as too expensive. We are trying to bring this technology within the reach of anyone and everyone who needs it.”

Issued by: Lacea Loader
Director: Strategic Communication

Telephone: +27 (0) 51 401 2584
Cell: +27 (0) 83 645 2454
E-mail: news@ufs.ac.za
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