Dietary Influences on Animal Health: A Systematic Map of Laboratory Studies

Abstract

This work investigates dietary research employing laboratory animals, focussing on the implications for animal welfare. I examine species representation, diet types, and ethical implications in laboratory settings. The findings show an over-representation of economically species, as well as a preference for mixed ration and high-fat diets, which limits the diversity of dietary models explored. The study also reveals substantial discrepancies in longitudinal research and non-metabolic effects, both of which are critical for gaining a thorough understanding of nutrition and health. Ethical considerations, notably adherence to the 3Rs, are highlighted to ensure that nutritional interventions are carried out in accordance with high animal welfare standards. Future research recommendations include enhancing species diversity, studying a wider range of dietary patterns, and addressing previously unexplored elements of animal health in laboratory settings.