Millets, the staple food found in arid and semi-arid regions, are rich in bioactive chemicals, micronutrients, vitamins, complex carbohydrates, balanced amino acid-enriched proteins, and dietary fibers. These phytochemicals help to regulate blood pressure, cardiovascular health, protect against thyroid diseases, have anticancer, anti-hypersensitive, antioxidant, and antimicrobial properties. They also have anti-inflammatory, anti-obesity, and anti-diabetic properties, making them economically and nutritionally essential for health management. Millets contain 7-12% proteins, 2-5% fats, 65-75% carbohydrates, and 15-20% dietary fiber. Their unique microflora has potent probiotic effects, and their derived compounds exhibit DNA-protecting abilities. This review provides comprehensive information about millet distribution, taxonomy, derived phytochemicals, and associated health benefits. Millet cultivation helps to reduce the carbon footprint and can be cultivated under boreal conditions, has huge capabilities to grow under drought and widely recognized as climateresilient crop. The millet-based products can be used for health management of children and older adults.