The author of the book FAT to t, Mrs. Ruchi Masih is a seasoned Marathoner and an Ultra Runner, having completed 3 Ultra 12 hour runs since 2018, covering a distance of approx 55 km in the rst two runs, while managing a whooping 72 km in the run in Nov 2021, after losing 30 kg weight. She ran several Marathons, Half marathons and 10k runs over the period of past 7 years. A Basketball player and a Science post graduate from Vikram University, Ujjain and currently pursuing Masters of Science in Yoga from B.R. Ambedkar University, Mhow. Ruchi Masih has explored her science background to get into the root cause of weight gain and hence losing weight. Lately (Dec 2021) she has been shortlisted amongst thousands of aspirants awarded with “Nation's Choice Award, Influential Women 2021” at a felicitation program held at Constitution Club of India, New Delhi. A few days later Mrs. Ruchi Masih was awarded by the title Mrs. India, Fitness Diva (freak) amidst thousands of contesting participants at a Spectacular Extravaganza, Ms. & Mrs. India 2021, held at hotel Sheraton Grand, Indore. Mrs. Ruchi Masih has pledged to bring a change in the society through health and tness, especially for people suffering from Obesity.