Bariatric Surgery Weight Loss Calculator (China)
Calculate expected weight loss trajectory post-bariatric surgery. Covers Sleeve Gastrectomy (VSG), Roux-en-Y Bypass (RNY), and Duodenal Switch (DS).
Projections Post-Bariatric Surgery
Bariatric surgery (such as Sleeve Gastrectomy or Gastric Bypass) is an effective medical intervention for severe obesity. It restricts food intake and alters metabolic hormones to support weight loss.
Expected weight loss is typically measured as a percentage of Excess Body Weight (EBW). Patients generally lose 50% to 70% of their excess weight within the first 12 to 18 months following the procedure.
This calculator provides estimated weight loss trajectories based on statistical clinical averages. Achieving and maintaining these targets requires strict adherence to dietary guidelines, including high protein intake and lifelong vitamin supplementation.
Frequently Asked Questions
Q: How much weight do you lose after VSG surgery?
On average, patients lose 50% to 60% of their excess body weight within the first year after a Vertical Sleeve Gastrectomy.
Q: What is excess body weight?
Excess body weight is your current weight minus your ideal body weight (based on a healthy BMI of 25).
医学审核： Rekha Kumar 博士（M.D., M.S.，首席医学审核） · 最近审核: September 2026 · 更新时间: 2026-09-15
证据与参考
本工具仅供参考，不能替代专业医疗建议。
常见问题
这个计算器免费吗？
是的。Weight Loss Percentage 的所有计算器均免费，无需注册或账号。
结果有多准确？
结果取决于输入数据的准确性以及依据国家卫生机构指南发布的计算公式。请关注数周趋势，而非单次读数。
我应该多久查一次？
当体重、活动量或目标变化时再查看——对大多数人来说，每周一次即可看出可靠趋势。
谁审核本网站的内容？
所有医学与营养内容均由首席医学审核 Rekha Kumar 博士（M.D., M.S.）撰写并审核，引用美国疾控中心（CDC）和国立卫生研究院（NIH）等联邦卫生来源。