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March 31st, 2025
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Universidade Federal do Rio Grande do Norte Centro de Ciencias da Saude
ecology
biorxiv

Prioritizing Neglected Food Species in Nutritional Studies Using Expert-Knowledge and Explainable AI

Jacob, M. C. M.Open in Google Scholar•Carvalho, A. M. d.Open in Google Scholar•Batista, A. G.Open in Google Scholar•Santos Junior, A. d. F.Open in Google Scholar•Carioca, A. A. F.Open in Google Scholar•Morais, C. M. M. d.Open in Google Scholar•Cazarin, C. B. B.Open in Google Scholar•Tregidgo, D.Open in Google Scholar•Oliveira, D. V. B. d.Open in Google Scholar•Marchioni, D. M. L.Open in Google Scholaret al.

Food biodiversity is vital for human health and sustainable food systems. However, research on neglected and underutilized species is limited by funding, uneven research capacity, and the challenge of balancing ecological, cultural, and public health considerations, requiring innovative prioritization approaches. Using Brazil as a model, this study inventories 369 neglected food species across algae, aquatic fauna, wild terrestrial vertebrates, insects, mushrooms, and plants. A mixed-methods approach, combining expert knowledge and explainable AI (LightGBM and SHAP value analysis), identified key factors for prioritizing species for food composition and consumption studies. The inventory is dominated by plants (29.5%) and wild vertebrates (24.4%), with major nutritional data gaps, particularly for algae, insects, and wild vertebrates. Over 36,000 recipes using neglected species were identified. In both food composition (R{superscript 2}: 0.677) and consumption studies (R{superscript 2}: 0.782) recipe number and species occurrence across different states were the most influential features predicting prioritization. These findings emphasize the role of cultural uses and local accessibility in shaping nutritional research priorities. We urge increased research on neglected species to bridge data gaps and integrate them into food systems, promoting sustainable diets in Brazil and other tropical regions.

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