The book on “Fish Nutrition and its relevance to human health” is an important document in filling the gap of requisite fish nutrition and sustainable aquaculture in different agro-climatic zone and it’s relevance to human health. The book includes 14 chapters addressing various aspect of nutritional requirement of cultivable finfishes of freshwater, brackish water and marine eco system including cold water and valley region fisheries. Various aspects on larval and adult feeding with cultivation and intensification of live food organisms including copepods is discussed. Aspects on immunomodulation, role of digestive enzymes and nutraceuticals, probiotics including nutrigenomics have been well documented. Post harvest and value addition aspects have been the important contribution for fish farming and human nutrition value. A topic has been including on water quality management for safe husbandry practices on bio-flock technology and its relevance for sustainable aquaculture farming system in a book on fish nutrition & its relevance to human health. The book also addresses present status of aquaculture, location specific package and practices of indigenous fish culture of both from inland and coastal regions. The emphasis is given on sustainable utilization of fisheries wealth from aquatic and marine resources for improving the husbandry practices by addressing issues in fish and aquaculture nutrition & safe husbandry practices. This book will serve as a basic document for all stakeholders such as policy planners, researchers, students, development and extension workers in carrying out aquaculture research, extension and developmental activities aiming towards adoption of sustainable aquaculture practices and for human nutrition through diversification of aquaculture as a viable husbandry.