The "Slimming Pen" refers to injectable medications like Saxenda and Wegovy (semaglutide) that help with weight loss. These medications regulate hunger hormones, helping users feel fuller and eat less. They are prescribed for individuals who need additional support in managing their weight, especially when diet and exercise alone aren’t sufficient.

RNY reversal is the process of undoing the Roux-en-Y gastric bypass. Although rare, reversals are sometimes necessary due to complications such as malnutrition, severe dumping syndrome, or other medical issues.

Gastric banding is a type of bariatric surgery in which an adjustable band is placed around the upper part of the stomach to create a small pouch that limits food intake. It is one of the least invasive forms of weight-loss surgery but has fallen out of favor due to its lower success rates compared to other procedures like the sleeve gastrectomy or Roux-en-Y bypass.

Weight lost refers to the reduction in body weight that is typically achieved through lifestyle changes, medications, or bariatric surgeries like the RNY or gastric band. Weight loss, particularly significant or rapid weight loss, can have dramatic positive effects on a person's overall health, reducing the risk of heart disease, diabetes, and other obesity-related conditions.

Another term for the Roux-en-Y gastric bypass, the Roux bypass is highly regarded for its effectiveness in helping patients lose weight and improve health conditions related to obesity. Named after the French surgeon César Roux, this procedure is a combination of both restrictive and malabsorptive techniques.