The journey to a healthier life through gastric sleeve surgery begins well before your surgery date. At Lifetime Surgical in San Jose and Los Gatos, Dr. Richard Nguyen and his team prepare you thoroughly so you know exactly what to expect at every stage.
Most bariatric patients are placed on a liver-shrinking diet 2–4 weeks before surgery. This high-protein, low-carbohydrate diet reduces the size of your liver, making the laparoscopic procedure safer and easier. The diet typically includes lean proteins (chicken, fish, eggs), protein shakes, non-starchy vegetables, and plenty of water — while eliminating sugar, bread, pasta, and fatty foods.
This phase also helps you begin developing the eating habits you'll maintain after surgery.
In the final week, you'll complete any remaining pre-operative testing, pick up prescribed medications, prepare your recovery space at home, stock up on protein shakes, broths, and sugar-free liquids, and arrange for someone to drive you home and help for the first 1–2 days.
Gastric sleeve surgery (vertical sleeve gastrectomy) at Lifetime Surgical is performed laparoscopically through 4–5 small incisions. Dr. Nguyen removes approximately 75–80% of the stomach, creating a smaller, banana-shaped "sleeve." The procedure typically takes 45–90 minutes.
Most patients at Lifetime Surgical go home the same day or after one night in the hospital, depending on individual factors and Dr. Nguyen's assessment.
The first week is about healing. You'll be on a clear liquid diet — water, broth, sugar-free gelatin, and diluted protein drinks. Expect some soreness at the incision sites, fatigue, and the need for frequent small sips rather than gulps. Most patients can walk around the house within 24 hours, which is encouraged to prevent blood clots.
You'll advance to full liquids including protein shakes, cream soups (strained), yogurt, and milk. Protein intake becomes a priority — aim for 60–80 grams per day through liquid sources. Most patients feel noticeably more energetic by the end of week 2.
Soft, pureed foods are introduced — think scrambled eggs, cottage cheese, hummus, pureed chicken, and mashed avocado. Meals are tiny (2–4 tablespoons), eaten slowly. You'll begin to find your new "full" signal.
Soft, easily digestible foods join your diet — baked fish, tender chicken, soft-cooked vegetables, and beans. Portion sizes remain small (about 1/4 cup per meal). Chewing thoroughly becomes essential.
By month 2–3, most patients can eat a wide variety of foods in small portions. Dr. Nguyen's team provides guidance on foods to reintroduce and foods to avoid (carbonated drinks, tough meats, bread, and high-sugar items).
This is where the dramatic changes happen. Most patients lose 60–70% of their excess weight within the first year. Energy levels soar, medications for diabetes, blood pressure, and sleep apnea are often reduced or eliminated, and confidence grows.
With over 15,000 surgeries and nearly 20 years of experience, Dr. Richard Nguyen has guided thousands of patients through gastric sleeve recovery. His team at Lifetime Surgical provides comprehensive pre- and post-operative support, including nutritional counseling, follow-up care, and access to medical weight loss options like semaglutide and tirzepatide for patients who need additional support.
Most patients with desk jobs return to work within 1–2 weeks. Physically demanding jobs may require 3–4 weeks. Dr. Nguyen provides personalized guidance based on your occupation.
Walking is encouraged immediately. Light exercise can typically begin at 2–3 weeks, with gradual progression to full activity by 6–8 weeks.
Most patients lose 60–70% of their excess body weight within 12–18 months. Results vary based on starting weight, adherence to dietary guidelines, and activity level.
Significant weight loss may result in excess skin, particularly around the abdomen, arms, and thighs. This varies by age, genetics, and amount of weight lost. Body contouring surgery is an option once weight stabilizes.
Weight loss plateaus are normal. Lifetime Surgical's team helps you adjust your nutrition, activity, and potentially adds medical weight loss support to keep progress moving.
Schedule a consultation with Dr. Nguyen at Lifetime Surgical to learn if gastric sleeve surgery is right for you. We serve patients throughout San Jose, Los Gatos, Santa Clara, Cupertino, Sunnyvale, Mountain View, Fremont, and the greater Silicon Valley area.
Wondering which surgical procedure might be right for your condition? We're here to help you understand your treatment options and develop a personalized surgical plan. Contact our office today to schedule a consultation.
Your path to improved health may be more achievable than you think—with advanced surgical techniques leading to faster recovery, reduced complications, and a significantly enhanced quality of life.
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