The integration of knowledge, methods, and perspectives of multiple disciplines and stakeholders is increasingly viewed as crucial for product innovation and competitive advantage in nutraceuticals industries. Yet, little attention has been given to how different forms of multidisciplinarity can facilitate strategic innovation in this sector. To address this question, this chapter distinguishes narrow multidisciplinarity, which is grounded in science, engineering, and technology, from wide multidisciplinarity, which bridges the divide between the natural and social sciences. Drawing upon case studies, we show that multidisciplinary approaches can enable firms to optimise product characteristics and transform customer expectations and regulatory requirements. We highlight the potential shortfalls of narrow multidisciplinarity and suggest that wide interdisciplinarity can enable firms both to develop products that satisfy customer expectations and to galvanise change that maximises the social, economic, and ecological benefits of nutraceutical innovations. This chapter sensitises decision-makers to the multitude of approaches, benefits, and challenges that multidisciplinary endeavours in nutraceutical firms often entail.