<s>[INST] Is it possible to go on a diet similar to those given to gastric bypass patients and achieve the same weight loss results but without the surgery? [/INST] This has been attempted by researchers, scientists and many people to follow a low calorie diet for long term. However once you start low calorie diet and amount body's hormones start stimulating your hunger ,start reducing your metabolism,following which replase of weight happens.It is not easy for anyone to follow this diet lifelong , however after the gastric bypass because the hormones are altered , changed the meatbolism is corrected as well as the hunger , cravings are reduced it is easier for the pateint to follow the diets after surgery because the operations mechanism works on the centre in the brain and hence this can be achieved by the patients. Source: LOC. Link: https://obesityasia.com/faqs/. Field: Endocrinology. Disease: Obesity </s>