Lisanne Monica Monica du Plessis

Prof. Lisanne Monica Monica du Plessis


Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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25 April 2015 in BMC Public Health
Verified
Journal Article
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FMFlorence K M’kaibi
Florence K M’kaibi
NSNelia Steyn
Nelia Steyn
SOSophie Ochola
Sophie Ochola
LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
Kenya has a high prevalence of underweight and stunting in children. It is believed that both agricultural biodiversity and seasonal rainfall influences household food security and dietary intake. In the present study we aimed to study the effects of agricultural biodiversity and seasonal rains on dietary adequacy and household food security of preschool Kenyan children, and to identify significant relationships between these variables. Two cross-sectional studies were undertaken in resource-poor households in rural Kenya approximately 6 months apart. Interviews were done with mothers/caregivers to collect data from randomly selected households (N = 525). A repeated 24-hour recall was used to calculate dietary intake in each phase while household food security was measured using the Household Food Insecurity Access Scale (HFIAS). A nutrient adequacy ratio (NAR) was calculated for each nutrient as the percent of the nutrient meeting the recommended nutrient intake (RNI) for that nutrient. A mean adequacy ratio (MAR) was calculated as the mean of the NARs. Agricultural biodiversity was calculated for each household by counting the number of different crops and animals eaten either from domestic sources or from the wild. Dietary intake was low with the majority of households not meeting the RNIs for many nutrients. However intake of energy (p < 0.001), protein (p < 0.01), iron (p < 0.01), zinc (p < 0.05), calcium (p < 0.05), and folate (p < 0.01) improved significantly from the dry to the rainy season. Household food security also increased significantly (p < 0.001) from the dry (13.1 SD 6.91) to the rainy season (10.9 SD 7.42). Agricultural biodiversity was low with a total of 26 items; 23 domesticated and 3 from the natural habitat. Agricultural biodiversity was positively and significantly related to all NARs (Spearman, p < 0.05) and MAR (Spearman, p < 0.001) indicating a significant positive relationship between agricultural biodiversity of the household with dietary adequacy of the child’s diet. Important significant relationships were found in this study: between agricultural biodiversity and dietary adequacy; between agricultural biodiversity and household food security and between dietary adequacy and household food security. Furthermore, the effect of seasonality on household food security and nutrient intake was illustrated.

3 September 2020 in BMC Public Health
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TKTayla Ashton Kaltenbrun
Tayla Ashton Kaltenbrun
LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
SDScott Drimie
Scott Drimie
Background: As a low-middle income country, South Africa has seen an upsurge in the double burden of malnutrition (DBM). Owing to the rising costs of obesity on healthcare in South Africa, the National Treasury implemented a fiscal policy for the taxation of SSBs, known as the Health Promotion Levy, in line with the WHO recommendation. Potential negative impacts of the policy on the sugar cane industry and economic and rural development have been voiced by different sectors. By including a subsection in the SSBs fiscal policy and aligning the goals with existing policies, government could have made provisions for sugar cane farms to substitute crops with alternatives, including nutritional alternatives where possible, while supporting existing small-scale farms to produce nutrient-dense, local and culturally acceptable crops. Thus, the purpose of the study is to understand the perceptions of the various stakeholders on combining nutrition-sensitive agricultural interventions with the taxation on sugar-sweetened beverages (SSBs) to improve overall health and nutrition in South Africa. Methods: Semi-structured, in-depth interviews were conducted with each participant. The interviews were audio-recorded, transcribed intelligent verbatim, and cross-checked against the audio-recordings by the principal researcher. ATLAS.ti 8 software was used to navigate the data and assist with thematic analysis. Results: Perceptions of combining SSB taxation with agricultural policies to improve food and nutrition security were positive. The participants found it to be an innovative idea in theory but questioned the feasibility of combining policies. Participants highlighted education as an essential element for successfully changing behaviour to ensure a positive impact of the combined policy approach. Participants believed that before government could scale up nutrition-sensitive agricultural interventions, basic services and government functions would first need to run optimally. Conclusion: Overall, perceptions with regard to combining the taxation on SSBs with nutrition-sensitive agricultural policies to improve overall health and nutrition in South Africa were positive. Although participants questioned the feasibility of combining these policies, it was viewed as a way to combat alleged collateral damage linked to the tax, with a specific focus on developing small-scale farmers. More research into these combined policy approaches in a South African context is required.

13 February 2018 in BMC Public Health
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Journal Article
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LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
MMM. H. McLachlan
M. H. McLachlan
SDScott Drimie
Scott Drimie
Breede Valley is a sub-district of the Cape Winelands district, Western Cape Province, South Africa. The administrative capital of the district is situated in the semi-rural town Worcester. Findings of a baseline survey in Worcester revealed poor infant feeding practices and childhood under- and overnutrition, with particular concern over high levels of stunting and low dietary diversity. Maternal overweight and obesity was high. These characteristics made the site suitable to study multi-sectoral arrangements for infant and young child nutrition (IYCN). The purpose of this study was to explore elements of an enabling environment with key stakeholders aimed at improving IYCN at implementation level. Focus group discussions and interviews were conducted with representatives from two vulnerable communities; local and district government; higher education institutions; business; and the media in the Breede Valley. Audio recordings were transcribed and data were analysed with the Atlas.TI software programme. The participants viewed knowledge and evidence about the first 1000 days of life as important to address IYCN. The impact of early, optimal nutrition on health and intellectual development resonated with them. The IYCN narrative in the Breede Valley could therefore be framed around nutrition’s development impact in a well-structured advocacy campaign. Participants felt that capacity and resources were constrained by many competing agendas spreading public resources thinly, leaving limited scope for promotion and prevention activities. “People” were viewed as a resource, and building partnerships and relationships, could bridge some shortfalls in capacity. Conversations about politics and governance elicited strong opinions about what should be done through direct intervention, policy formulation and legislation. A lead government agency could not be identified for taking the IYCN agenda forward, due to its complexity. Participants proposed it should be referred to a local, informal, inter-governmental body where directors and senior managers meet to address issues of cross-cutting importance. The study illustrated that knowledge and evidence; politics and governance; and capacity and resources, elements of the international definition of an enabling environment, also apply at implementation level. In addition, our findings indicated that a people-centred approach is critical in shaping the enabling environment at this level.

15 January 2021 in South African Journal of Clinical Nutrition
Verified
Journal Article
Open access
LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
LDLc Daniels
Lc Daniels
HKHe Koornhof
He Koornhof
SSS Samuels
S Samuels
IMI Möller
I Möller
SRS Röhrs
S Röhrs
Background: This paper provides an overview of a series of studies undertaken to assess the appropriateness and understanding of the revised, draft South African Paediatric Food-Based Dietary Guidelines (SA-PFBDGs) amongst mothers/caregivers of children aged 0–5 years. Previous exposure to guidelines with similar messages, barriers and enablers to following the guidelines were also assessed. Design: Qualitative methods were used to collect data from 38 focus-group discussions (isiXhosa = 11, Afrikaans = 11, English = 10 and siSwati = 6) resulting in 268 participants. Setting: Breede Valley sub-district (Worcester), Stellenbosch Municipality (Stellenbosch, Pniel and Franschhoek) and Northern Metropole (Atlantis, Witsand, Du Noon and Blouberg), City of Cape Town, Western Cape province, as well as Ehlanzeni District (Kabokweni) in Mpumalanga province. Subjects: Mothers/caregivers older than 18 years who provided informed consent to participate. Results: The majority of participants had previous exposure to guidelines with similar messages to the SA-PFBDGs. Information sources included nurses, local clinics, family, friends and media. Possible barriers to following the guidelines included limited physical and financial access to resources; cultural/family practices, poor social support and time constraints. Outdated information, misconceptions, inconsistent messages and contrasting beliefs were evident. The vocabulary of some messages was not well understood. Education on infant and young child feeding and visual portrayal of the guidelines could aid understanding. Conclusion: A degree of rewording should be considered for improved understanding of the revised, draft SA-PFBDGs. Once adopted, the guidelines can be used to educate various stakeholders, including parents, caregivers, healthcare providers and educators, on the correct nutritional advice for children aged 0–5 years ensuring the healthy growth and development of young children in South Africa.

29 June 2022 in Nutrients
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Journal Article
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LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
NJNophiwe Job
Nophiwe Job
ACAngela Coetzee
Angela Coetzee
SFShân Fischer
Shân Fischer
MCMercy P. Chikoko
Mercy P. Chikoko
O(on behalf of the Food-Based Dietary Guideline (FBDG) Technical Working Group (TWG) Led by Tanzania Food and Nutrition Centre (TFNC)
on behalf of the Food-Based Dietary Guideline (FBDG) Technical Working Group (TWG) Led by Tanzania Food and Nutrition Centre (TFNC)
In this paper we report on the development and field-testing of proposed food-based dietary guideline (FBDG) messages among Tanzanian consumers. The messages were tested for cultural appropriateness, consumer understanding, acceptability, and feasibility. In addition, comprehension of the messages was assessed using culturally representative images for low literacy audiences. Focus group discussions were used as method for data collection. Results indicate that the core meaning of the proposed FBDG messages and images were understood and acceptable to the general population. However, participants felt that nutrition education would be required for improved comprehension. Feasibility was affected by some cultural differences, lack of nutrition knowledge, time constraints, and poverty. Suggestions were made for some rewording of certain messages and editing of certain images. It is recommended that the field-tested messages and images, incorporating the suggested changes, should be adopted. Once adopted, the FBDGs can be used to inform and engage various stakeholders, including parents, caregivers, healthcare providers and educators on appropriate nutritional practices for children and adults. They can also be used to guide implementation of relevant policies and programmes to contribute towards the achievement of sustainable healthy diets and healthy dietary patterns.

29 March 2016 in South African Journal of Child Health
Verified
Journal Article
Open access
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LPLisanne Monica Monica du Plessis
Lisanne Monica Monica du Plessis
MHMartha G Herselman
Martha G Herselman
MMMildred H McLachlan
Mildred H McLachlan
JNJohanna H Nel
Johanna H Nel
Selected facets of nutrition during the first 1 000 days of life in vulnerable South African communities