text: Yo, Roux-en-Y gastric bypass, a tool accepted
  For obesity treatment, weight loss perfected
  Compared to diets and exercise, it's next level
  And other surgeries can't reach the same level
  
  Gastric banding, nah, it can't compete
  When it comes to shedding pounds, it's a feat
  Long-term maintenance, yeah, it stays intact
  But the weight loss mechanisms, still abstract
  
  Gastrointestinal hormones, they play a role
  In appetite control, they take control
  GLP-1, PYY, leptin, and ghrelin
  These hormones affect how we be feelin'
  
  45 articles, we did research, you see
  GLP-1, PYY, they were higher, undoubtedly
  But ghrelin, it took a dive, went lower
  Post Roux-en-Y gastric bypass, it's a showstopper
  
  In folks with obesity, overweight or normal weight
  And those with other procedures, they can't relate
  Lifestyle changes, nah, they ain't the same
  Roux-en-Y gastric bypass takes the fame
  
  Understanding hormonal shifts, that's the key
  For dieticians to optimize nutrition, you see
  But there are gaps, research should fill
  In future studies, let's strive for the thrill