Rethinking Waste as Nutrition: Agro-Industrial Residues for Healthier Processed Foods

Modern food systems produce vast quantities of agro-industrial residues while often failing to deliver nutritionally adequate diets. Public debate frequently frames processed foods as inherently harmful; however, this viewpoint argues that the primary problem lies not in processing itself, but in ingredient design and nutritional intent. Fruit and vegetable peels and pomace, seed cakes, cereal brans, and herbal by-products represent underutilised reservoirs of dietary fibre, protein, minerals, and polyphenols that could meaningfully improve the nutritional quality of processed foods if translational barriers were addressed. We advocate a shift towards ingredient-ready solutions enabled by green extraction, fermentation, and functional structuring. Rather than treating these ingredients and residues as disposal burdens, the agrifood sector should harness them as high value opportunities for healthier diets, contributing to sustainability and the broader bioeconomy. Regulatory clarity, transparent labelling, and proactive science communication are identified as decisive enablers for adoption. This Viewpoint provides a strategic analysis of the translational barriers preventing industry adoption and proposes a shift to reposition their use as functional tools for the nutritional reformulation of commercial food products. If food science aims to reform contemporary diets, the next generation of ingredients must arise not from scarcity, but from what currently goes to waste.