“How long is the treatment for obesity?”

It really depends on the person. For some it may only require some simple modifications in nutrition and activity. However; for many it requires help from a physician who specializes in treating obesity for a life-long plan. Since we can't change our genetics, our age and our stress, it tends to require a team approach life-long to lose the percent body fat and keep it off. I suggest going to the website: https://obesitymedicine.org/find-obesity-treatment/ and find a doctor near you. For me, since I battle obesity myself, I have a life-long treatment to keep my percent body fat at a healthy and comfortable level.