Evidence map›Paper›PMID 41035019›Full record

ArticleBMC nutrition2025

Marketing of ultra-processed foods on popular radio channels in Kenya.

Caroline H Karugu, Milkah N Wanjohi, Veronica Ojiambo, Sharon Mugo, Michelle Holdsworth, Amos Laar, Kerstin Klipstein-Grobusch, Stefanie Vandevijvere, Gershim Asiki, Charles Agyemang

Abstract read
In one paragraph

Article in BMC nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Caroline H KaruguChronic Diseases Management Unit, African Population Health Research Center, Nairobi, Kenya. ckarugu@aphrc.org.
Milkah N WanjohiNutrition and Food Systems Unit, African Population and Health Research Center, Nairobi, Kenya.
Veronica OjiamboChronic Diseases Management Unit, African Population Health Research Center, Nairobi, Kenya.
Sharon MugoChronic Diseases Management Unit, African Population Health Research Center, Nairobi, Kenya.
Michelle HoldsworthNUTRIPASS Unit, IRD-French National Research Institute for Sustainable Development, Montpellier, France.
Amos LaarSchool of Public Health, University of Ghana, Accra, Ghana.
Kerstin Klipstein-GrobuschJulius Global Health, Department of Global Public Health and Bioethics, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
Stefanie VandevijvereSciensano, Service of Lifestyle and Chronic Diseases, Brussels, Belgium.
Gershim AsikiChronic Diseases Management Unit, African Population Health Research Center, Nairobi, Kenya.
Charles AgyemangDepartment of Public and Occupational Health, Amsterdam Public Health, University of Amsterdam Medical Centers, Amsterdam, the Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is a dearth of information on the extent of marketing of ultra-processed foods on traditional media such as radio in low- and middle-income countries (LMICs). Consumption of ultra-processed foods is associated with nutrition-related noncommunicable diseases such as overweight/obesity, type 2 diabetes, and cardiovascular diseases. This study aimed to examine the marketing of ultra-processed foods on the most widely accessed radio stations across three counties in Kenya.

methodsThis was a cross-sectional quantitative study conducted in three counties: Nairobi, Mombasa, and Baringo counties in the period between December 2021 to February 2022. We purposively selected 5 radio stations based on their popularity in different counties according to the Communications Authority of Kenya ratings. Using stratified sampling, we selected 8 recording days: 4 weekdays and 4 weekend days for three months. The recorded data were coded using a structured questionnaire. The key variables included the food and non-food and beverage products advertised on the radio stations, categorization of the food, non-food beverage products, time slots of the advertisements, promotional strategies, and premium offers.

resultsOf the 1499 advertisements on the radio, 15.7% (n = 235) were food and beverage products. The most advertised food categories were sugar-sweetened beverages (44.7%) and alcoholic drinks (23.4%). Ultra-processed foods (UPFs) accounted for 58.3% of the non-alcoholic food and beverage product advertisements on the radio. There was a significantly higher level of UPFs during the weekdays (58.3%) compared to weekend days (39.0%) (p < 0.001), school holiday seasons (73.4%) compared to non-school holiday seasons (46.5%) (p < 0.001), and in urban areas (70.1%) compared to rural areas (34.5%) (p < 0.001).

conclusionsWe observed a high level of UPF marketing across both rural and urban settings, with higher proportions recorded in urban areas and during school holiday periods. To support healthier food environments, there is a need for regulatory action targeting radio advertising of unhealthy foods. This may include restrictions during peak child listening hours, regulation of persuasive content, and clear identification of sponsored food promotions.

Indexed as

Dietary behaviorsExposureFood environmentsListenershipMarketingMediaPoliciesPremium offersProcessed foodsPromotionPromotional strategiesRadioTraditional mediaUltra-processed foodsUnhealthy foods

Identifiers

PMID41035019
PMCPMC12490048

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.