This was my Msc dissertation subject. . Nutrigenomics Study Approach of Genetic and Environmental factor effect on obesity. I was first introduced to this very interesting subject of Nutrigenomics after watching the introductory video of Nutritionist Ryan Fernando sir of Qua Nutrition. I was very much excited and interested to do my dissertation in the very same subject. Then after some research, I got to know about Dr. Geeta Dharmatti mam who is working in same subject. I am very much thankful for her guidance. I am also very much thankful of Dr. Amol Raut sir of GeneSupport for the guidance and support for completing my dissertation. I am also thankful of Dr. Rupali Sengupta mam of SNDT. I have completed this dissertation under IGNOU.