Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages

Ligowe, I. S.; Phiri, F. P.; Ander, E. L.; Bailey, E. H.; Chilimba, A. D. C.; Gashu, D.; Joy, E. J. M.; Lark, R. M.; Kabambe, V.; Kalimbira, A. A.; Kumssa, D. B.; Nalivata, P. C.; Young, S. D.; Broadley, M. R.

doi:10.1017/S0029665120006904

Landscape and Micronutrient Fertilizer Effect on Agro-Fortified Wheat and Teff Grain Nutrient Concentration in Western Amhara (2023)
Journal Article
Manzeke-Kangara, M. G., Amede, T., Bailey, E. H., Wilson, L., Mossa, A. W., Tirfessa, D., …Gameda, S. (2023). Landscape and Micronutrient Fertilizer Effect on Agro-Fortified Wheat and Teff Grain Nutrient Concentration in Western Amhara. Agronomy, 13(10), Article 2598. https://doi.org/10.3390/agronomy13102598

Agronomic biofortification, encompassing the use of mineral and organic nutrient resources which improve micronutrient concentrations in staple crops is a potential strategy to promote the production of and access to micronutrient-dense foods at the... Read More about Landscape and Micronutrient Fertilizer Effect on Agro-Fortified Wheat and Teff Grain Nutrient Concentration in Western Amhara.

Genotypic Response of Finger Millet to Zinc and Iron Agronomic Biofortification, Location and Slope Position towards Yield (2023)
Journal Article
Teklu, D., Gashu, D., Joy, E. J., Lark, R. M., Bailey, E. H., Wilson, L., …Broadley, M. R. (2023). Genotypic Response of Finger Millet to Zinc and Iron Agronomic Biofortification, Location and Slope Position towards Yield. Agronomy, 13(6), Article 1452. https://doi.org/10.3390/agronomy13061452

The present study aimed to investigate the influence of genotypic differences on responses to zinc and iron agronomic biofortification among yields of finger millet. A field experiment was conducted over two seasons in farmers’ fields in Ethiopia (20... Read More about Genotypic Response of Finger Millet to Zinc and Iron Agronomic Biofortification, Location and Slope Position towards Yield.

Impact of zinc and iron agronomic biofortification on grain mineral concentration of finger millet varieties as affected by location and slope (2023)
Journal Article
Teklu, D., Gashu, D., Joy, E. J. M., Lark, R. M., Bailey, E. H., Wilson, L., …Broadley, M. R. (2023). Impact of zinc and iron agronomic biofortification on grain mineral concentration of finger millet varieties as affected by location and slope. Frontiers in Nutrition, 10, Article 1159833. https://doi.org/10.3389/fnut.2023.1159833

Background: Food crop micronutrient concentrations can be enhanced through agronomic biofortification, with the potential to reduce micronutrient deficiencies among rural population if they have access to fertilizers. Here we reported the impact of a... Read More about Impact of zinc and iron agronomic biofortification on grain mineral concentration of finger millet varieties as affected by location and slope.

Anemia in children aged 6–59 months was significantly associated with maternal anemia status in rural Zimbabwe (2022)
Journal Article
Mutonhodza, B., Dembedza, M. P., Lark, M. R., Joy, E. J. M., Manzeke‐Kangara, M. G., Njovo, H., …Chopera, P. (2023). Anemia in children aged 6–59 months was significantly associated with maternal anemia status in rural Zimbabwe. Food Science and Nutrition, 11(3), 1232-1246. https://doi.org/10.1002/fsn3.3157

Globally, anemia is a public health problem affecting mostly women of reproductive age (WRA, n=452) and children aged 6–59 months (n=452) from low- and lower-middle-income countries. This cross-sectional study assessed the prevalence and determinants... Read More about Anemia in children aged 6–59 months was significantly associated with maternal anemia status in rural Zimbabwe.

Agronomic biofortification increases grain zinc concentration of maize grown under contrasting soil types in Malawi (2022)
Journal Article
Botoman, L., Chimungu, J. G., Bailey, E. H., Munthali, M. W., Ander, E. L., Mossa, A., …Nalivata, P. C. (2022). Agronomic biofortification increases grain zinc concentration of maize grown under contrasting soil types in Malawi. Plant Direct, 6(11), Article e458. https://doi.org/10.1002/pld3.458

Zinc (Zn) deficiency remains a public health problem in Malawi, especially among poor and marginalized rural populations, linked with low dietary intake of Zn due to consumption of staple foods that are low in Zn content. The concentration of Zn in s... Read More about Agronomic biofortification increases grain zinc concentration of maize grown under contrasting soil types in Malawi.

Cereal grain mineral micronutrient and soil chemistry data from GeoNutrition surveys in Ethiopia and Malawi (2022)
Other
Kumssa, D. B., Mossa, A. W., Amede, T., Ander, E. L., Bailey, E. H., Botoman, L., …Nalivata, P. C. (2022). Cereal grain mineral micronutrient and soil chemistry data from GeoNutrition surveys in Ethiopia and Malawi

The dataset comprises primary data for the concentration of 29 mineral micronutrients in cereal grains and up to 84 soil chemistry properties from GeoNutrition project surveys in Ethiopia and Malawi. The work provided insights on geospatial variation... Read More about Cereal grain mineral micronutrient and soil chemistry data from GeoNutrition surveys in Ethiopia and Malawi.

Linkages between soil, crop, livestock, and human selenium status in Sub-Saharan Africa: a scoping review (2022)
Journal Article
Mutonhodza, B., Joy, E. J., Bailey, E. H., Lark, M. R., Kangara, M. G., Broadley, M. R., …Chopera, P. (2022). Linkages between soil, crop, livestock, and human selenium status in Sub-Saharan Africa: a scoping review. International Journal of Food Science and Technology, 57(10), 6336-6349. https://doi.org/10.1111/ijfs.15979

Selenium (Se) is essential for human health, however, data on population Se status and agriculture-nutrition-health linkages are limited in sub-Saharan Africa (SSA). The scoping review aims to identify linkages between Se in soils/crops, dietary Se i... Read More about Linkages between soil, crop, livestock, and human selenium status in Sub-Saharan Africa: a scoping review.

Sub-sampling a large physical soil archive for additional analyses to support spatial mapping; a pre-registered experiment in the Southern Nations, Nationalities, and Peoples Region (SNNPR) of Ethiopia (2022)
Journal Article
Alemu, R., Gelaw, A. M., Gashu, D., Tafere, K., Mossa, A. W., Bailey, E., …Lark, R. M. (2022). Sub-sampling a large physical soil archive for additional analyses to support spatial mapping; a pre-registered experiment in the Southern Nations, Nationalities, and Peoples Region (SNNPR) of Ethiopia. Geoderma, 424, Article 116013. https://doi.org/10.1016/j.geoderma.2022.116013

The value of physical archives of soil material from field sampling activities has been widely recognized. If we want to use archive material for new destructive analyses to support a task, such as spatial mapping, then an efficient sub-sampling stra... Read More about Sub-sampling a large physical soil archive for additional analyses to support spatial mapping; a pre-registered experiment in the Southern Nations, Nationalities, and Peoples Region (SNNPR) of Ethiopia.

Selenium Concentration in Cattle Serum and Fodder from Two Areas in Ethiopia with Contrasting Human Selenium Concentration (2022)
Journal Article
Hailu, K., Gashu, D., Joy, E. J. M., Alonso, S., Gizaw, S., Gameda, S., …Broadley, M. R. (2022). Selenium Concentration in Cattle Serum and Fodder from Two Areas in Ethiopia with Contrasting Human Selenium Concentration. Frontiers in Bioscience-Landmark, 27(7), Article 200. https://doi.org/10.31083/j.fbl2707200

INTRODUCTION: Selenium (Se) is an essential mineral for livestock health and productivity. In cattle, Se deficiency is associated with delayed conception, growth retardation, and increased morbidity and mortality. METHODS: We conducted a survey of ca... Read More about Selenium Concentration in Cattle Serum and Fodder from Two Areas in Ethiopia with Contrasting Human Selenium Concentration.

Folate Deficiency Is Spatially Dependent and Associated with Local Farming Systems among Women in Ethiopia (2022)
Journal Article
Sisay, B. G., Tamirat, H., Sandalinas, F., Joy, E. J., Zerfu, D., Belay, A., …Gashu, D. (2022). Folate Deficiency Is Spatially Dependent and Associated with Local Farming Systems among Women in Ethiopia. Current Developments in Nutrition, 6(5), Article nzac088. https://doi.org/10.1093/cdn/nzac088

Background: Folate is essential for the synthesis and integrity of DNA, normal cell formation, and body growth. Folate deficiency among women of reproductive age (WRA) increases the risk of poor birth outcomes including neural tube defect (NTD)-affec... Read More about Folate Deficiency Is Spatially Dependent and Associated with Local Farming Systems among Women in Ethiopia.

Soil and landscape factors influence geospatial variation in maize grain zinc concentration in Malawi (2022)
Journal Article
Botoman, L., Chagumaira, C., Mossa, A. W., Amede, T., Ander, E. L., Bailey, E. H., …Nalivata, P. C. (2022). Soil and landscape factors influence geospatial variation in maize grain zinc concentration in Malawi. Scientific Reports, 12(1), Article 7986. https://doi.org/10.1038/s41598-022-12014-w

Dietary zinc (Zn) deficiency is widespread globally, and in particular among people in sub-Saharan Africa (SSA). In Malawi, dietary sources of Zn are dominated by maize and spatially dependent variation in grain Zn concentration, which will affect di... Read More about Soil and landscape factors influence geospatial variation in maize grain zinc concentration in Malawi.

Mineral micronutrient status and spatial distribution among the Ethiopian population (2022)
Journal Article
Belay, A., Gashu, D., Joy, E. J., Lark, R. M., Chagumaira, C., Zerfu, D., …Broadley, M. R. (2022). Mineral micronutrient status and spatial distribution among the Ethiopian population. British Journal of Nutrition, https://doi.org/10.1017/s0007114522000319

Multiple micronutrient deficiencies are widespread in Ethiopia. However, the distribution of selenium and zinc deficiency risks has previously shown evidence of spatially dependent variability, warranting the need to explore this aspect for wider mic... Read More about Mineral micronutrient status and spatial distribution among the Ethiopian population.

Biofortified Maize Improves Selenium Status of Women and Children in a Rural Community in Malawi: Results of the Addressing Hidden Hunger With Agronomy Randomized Controlled Trial (2022)
Journal Article
Joy, E. J., Kalimbira, A. A., Sturgess, J., Banda, L., Chiutsi-Phiri, G., Manase, H., …Allen, E. (2022). Biofortified Maize Improves Selenium Status of Women and Children in a Rural Community in Malawi: Results of the Addressing Hidden Hunger With Agronomy Randomized Controlled Trial. Frontiers in Nutrition, 8, Article 788096. https://doi.org/10.3389/fnut.2021.788096

Background: Selenium deficiency is widespread in the Malawi population. The selenium concentration in maize, the staple food crop of Malawi, can be increased by applying selenium-enriched fertilizers. It is unknown whether this strategy, called agron... Read More about Biofortified Maize Improves Selenium Status of Women and Children in a Rural Community in Malawi: Results of the Addressing Hidden Hunger With Agronomy Randomized Controlled Trial.

The nutritional quality of cereals varies geospatially in Ethiopia and Malawi (2021)
Journal Article
Gashu, D., Nalivata, P. C., Amede, T., Ander, E. L., Bailey, E. H., Botoman, L., …Broadley, M. R. (2021). The nutritional quality of cereals varies geospatially in Ethiopia and Malawi. Nature, 594, 71-76. https://doi.org/10.1038/s41586-021-03559-3

Micronutrient deficiencies (MNDs) remain widespread among people in sub-Saharan Africa where access to sufficient food from plant and animal sources that is rich in micronutrients (vitamins and minerals) is limited due to socioeconomic and geographic... Read More about The nutritional quality of cereals varies geospatially in Ethiopia and Malawi.

Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture (2021)
Journal Article
Cooper, H. V., Sjögersten, S., Lark, R. M., Girkin, N. T., Vane, C. H., Calonego, J. C., …Mooney, S. J. (2021). Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture. European Journal of Soil Science, 72(6), 2477-2492. https://doi.org/10.1111/ejss.13111

Contrasting tillage strategies not only affect the stability and formation of soil aggregates but also modify the concentration and thermostability of soil organic matter associated with soil aggregates. Understanding the thermostability and carbon r... Read More about Long‐term zero‐tillage enhances the protection of soil carbon in tropical agriculture.

Zinc deficiency is highly prevalent and spatially dependent over short distances in Ethiopia (2021)
Journal Article
Belay, A., Gashu, D., Joy, E. J., Lark, R. M., Chagumaira, C., Likoswe, B. H., …Broadley, M. R. (2021). Zinc deficiency is highly prevalent and spatially dependent over short distances in Ethiopia. Scientific Reports, 11(1), Article 6510. https://doi.org/10.1038/s41598-021-85977-x

Zinc (Zn) is an essential nutrient for human health. In Ethiopia, a high prevalence of Zn deficiency has been reported. To explore demographic variation and spatial dependencies in the Zn status of the Ethiopian population, we analyzed archived serum... Read More about Zinc deficiency is highly prevalent and spatially dependent over short distances in Ethiopia.

To till or not to till in a temperate ecosystem? Implications for climate change mitigation (2021)
Journal Article
Cooper, H. V., Sjögersten, S., Lark, R. M., & Mooney, S. J. (2021). To till or not to till in a temperate ecosystem? Implications for climate change mitigation. Environmental Research Letters, 16(5), Article 054022. https://doi.org/10.1088/1748-9326/abe74e

The management of agricultural soils affect the composition and scale of their greenhouse gas (GHG) emissions. There is conflicting evidence on the effect of zero-tillage on carbon storage and GHG emissions. Here we assess the effects of zero-tillage... Read More about To till or not to till in a temperate ecosystem? Implications for climate change mitigation.

Biofortification of wheat with zinc for eliminating deficiency in Pakistan: study protocol for a cluster-randomised, double-blind, controlled effectiveness study (BIZIFED2) (2020)
Journal Article
Khan, M. J., Mahboob, U., Joy, E. J., Broadley, M. R., Ander, E. L., Fatima, S., …Young, S. D. (2020). Biofortification of wheat with zinc for eliminating deficiency in Pakistan: study protocol for a cluster-randomised, double-blind, controlled effectiveness study (BIZIFED2). BMJ Open, 10(11), Article e039231. https://doi.org/10.1136/bmjopen-2020-039231

© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. INTRODUCTION: Micronutrient deficiencies, commonly referred to as 'hidden hunger', affect more than two bill... Read More about Biofortification of wheat with zinc for eliminating deficiency in Pakistan: study protocol for a cluster-randomised, double-blind, controlled effectiveness study (BIZIFED2).

Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes (2020)
Journal Article
Botoman, L., Nalivata, P. C., Chimungu, J. G., Munthali, M. W., Bailey, E. H., Ander, E. L., …Broadley, M. R. (2020). Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes. Plant Direct, 4(10), Article e00277. https://doi.org/10.1002/pld3.277

The prevalence of micronutrient deficiencies including zinc (Zn) is widespread in Malawi, especially among poor and marginalized rural populations. This is due to low concentrations of Zn in most staple cereal crops and limited consumption of animal... Read More about Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes.

Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages (2020)
Journal Article
Ligowe, I. S., Phiri, F. P., Ander, E. L., Bailey, E. H., Chilimba, A. D. C., Gashu, D., …Broadley, M. R. (2020). Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages. Proceedings of the Nutrition Society, 79(4), 457-467. https://doi.org/10.1017/S0029665120006904

Selenium (Se) is an essential element for human health. However, our knowledge of the prevalence of Se deficiency is less than for other micronutrients of public health concern such as iodine, iron and zinc, especially in sub-Saharan Africa (SSA). St... Read More about Selenium deficiency risks in sub-Saharan African food systems and their geospatial linkages.

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