Advances in Plant-Based Functional Foods: Emerging Trends, Nutritional Potential, and Health Implications

Abstract

Plant-based functional foods (PBFFs) have emerged as a rapidly growing sector driven by consumer health awareness, technological innovation, and sustainability considerations. These foods, encompassing cereals, legumes, fruits, vegetables, nuts, seeds, and novel sources like microalgae and microgreens, are rich in bioactive compounds such as polyphenols, carotenoids, polyunsaturated fatty acids, dietary fibers, phytosterols, and bioactive peptides. Evidence from epidemiological, clinical, and mechanistic studies demonstrates that PBFFs can modulate metabolic pathways, reduce oxidative stress, enhance cardiovascular and metabolic health, and support gut microbiota functionality. Technological advancements, including nanoemulsions, hydrogels, and non-thermal processing, are improving the bioavailability, stability, and functional efficacy of these compounds. Despite promising health benefits, challenges remain in ensuring consistent bioactive delivery, addressing safety and regulatory disparities, and achieving consumer acceptance. This review synthesizes emerging trends, nutritional potential, and health implications of PBFFs, providing insights for researchers, industry stakeholders, and policymakers to optimize functional food development and adoption.