There are several types of bariatric surgery: Sleeve gastrectomy: In the most-popular procedure, the surgeon removes about 80 percent of your stomach, making it smaller and reducing the hunger hormone ghrelin
This is also the phase where researchers need to be most vigilant about nutritional supplementation
Given the importance of purine-containing molecules for survival, vertebrates, including humans, have developed robust systems for synthesizing sufficient purine nucleosides for their metabolism using readily available materials (such as glucose, glycine, and glutamine), as well as recycling purine nucleosides from throughout the body or from the diet
[Article] [PubMed]19
Busy lifestyles, everyday stress, hormones, genetics, and aging all contribute to weight gain but they dont have to control it.