The widening gap between food supply and demand, driven by a growing population, necessitates the optimal use of agricultural produce. Food industry waste and by-products, which are rich in nutritional value, hold great potential for the development of value-added products. This approach contributes to pollution reduction and fosters the creation of cost-effective processed food products. Adopting such strategies aligns with the principles of circular economy and promotes sustainable food processing. 

Research into the development of cost-effective, value-added food products is gaining momentum, particularly for utilizing nutrient-rich by-products. Focusing on the enrichment and fortification of food products can meet the consumer demand for nutritionally improved options. 

The focus of this Methods Collection encompasses:

• Assessment of Food By-Product Potential: Evaluating the nutritional and functional potential of food by-products for use in novel food products. 
• Advanced Extraction Methods: Developing innovative techniques for extracting valuable compounds from food by-products. 
• Environmental Impact: Investigating the environmental benefits of reducing food waste and utilizing by-products. 
• Consumer Demand and Market Trends: Understanding consumer preferences and market trends for enriched and fortified food products. 

This Methods Collection consolidates advanced methodologies to enhance the reproducibility and impact of studies on food waste utilization for value-added product development. Young researchers are encouraged to delve into this field to drive innovation and progress in sustainable food technology.