There are concerns about thyroid cancer and suicidal thoughts. Once it goes generic or the manufacturer develops a better alternative we will hear about even more side effects.
Is it good for the body? I think it's probably safer to be a non-obese person with a higher risk of thyroid cancer than to remain obese, considering all the health risks of obesity. Of course people should lose weight through diet and exercise, but the values of discipline, self-motivation, accountability, and personal responsibility have been eroded from our society over the past few decades.
Sweet
Possible adverse effects include nausea, diarrhea, vomiting, constipation, abdominal pain, headache, fatigue, indigestion/heartburn, dizziness, abdominal distension, belching, hypoglycemia (low blood glucose) in people with type 2 diabetes, flatulence, gastroenteritis, and gastroesophageal reflux disease (GERD).[15] It can also cause pancreatitis, gastroparesis, and bowel obstruction.[31]