https://www.theguardian.com/news/audio/2021/jan/04/why-do-some-people-find-it-harder-than-others-to-lose-weight A reporter for the Guardian, talks with Dr Andrew Jenkinson, a bariatric surgeon in London and Dubai. Click on link above to listen. He has been working with obese and morbidly obese (20 stone +) people for 15 years. Following is what I took away from the Podcast People may have an obese gene but it is the environment