Tremendous changes have happened in the food choices and dietary practices globally and in the current scenario, where health concerns are on the rise and sustainability is a pressing issue, adopting a healthy, seed-based diet offers a range of benefits. Incorporating diverse seeds into our daily diets is a promising solution to improve individual health outcomes foster environmental sustainability and strengthen local economies. Underutilized seeds refer to seeds from plants that are not widely cultivated or consumed but have significant nutritional and economic potential. Research studies on these seeds are gaining traction, as they provide insights into their nutritional significance, potential health effects and environmental sustainability. Seed-based diets focusing on underutilized seeds represent a sustainable nutrition, ecology and cultural preservation approach. We can create resilient food systems that honor tradition and innovation by promoting the importance of underutilized seeds and empowering local communities to cultivate and consume them. Many underutilized seeds are integral to traditional cuisines and cultural identities and preserving these crops helps maintain cultural heritage and culinary diversity. The study revealed that the six selected underutilized seeds possess significant nutritional potential. Phytochemical, antioxidant and antibacterial assessments further highlighted their value as healthy dietary alternatives. The findings support the inclusion of these seeds in daily diets and emphasize the need to promote their cultivation, production and processing and building awareness among people for better nutrition at an affordable cost.