The Effect of Dapagliflozin on Weight Loss in Obese Adults Without Diabetes

The goal of this clinical trial is to examine the effectiveness of a drug named dapagliflozin (tested drug) on weight loss in young adults aged between 18 and 40 years with obesity who are not diagnosed with diabetes. The main questions this study aims to answer are: * How much weight in average can people loose with the use of tested drug compared to 2 other comparator drugs: metformin and placebo (non-medicated pill)? * What is the effect of using tested drug on other parameters used to assess blood pressure, cholesterol and sugar levels, and mental health? * How frequent are the side effects from using the tested drug compared to the comparator drugs? Participants will go through a 6-month program of physical activity and diet and measure their weight progress. Those who do not achieve the target weight reduction will be randomly assigned to any of the three drug groups, either testes drug group, comparator 1 (metformin), or comparator 2 (placebo).