Guest blog by Lillian Craggs-Dino, DHA, RDN, LDN, CLT, FASMBS-IH Metabolic and bariatric surgery can be a life-changing step toward better health, sustainable weight loss, and improved quality of life. It is important to understand that surgery is a powerful tool, not a quick fix. Long-term success does not come from surgery alone. It comes from pairing that tool with consistent nutrition habits, follow-up care, and lifestyle changes. When obesity is treated as the complex, chronic condition it is, patients benefit most from a full support team that includes medical providers, dietitians, behavioral health professionals, and movement specialists. Protein First Is the Most Important Bariatric Nutrition Habit If there is one nutrition rule most bariatric patients hear often, it is to prioritize protein. This guidance exists for a reason. After bariatric surgery, weight loss can happen quickly, and that often includes some muscle loss. Getting enough protein helps protect lean muscle, support healing, and keep your body strong as the scale changes. Most patients need 60 to 120 grams of protein per day, depending on surgery type, body size, and activity level.1 A registered dietitian nutritionist (RDN) can help personalize this goal. Protein also helps by: Keeping you full longer Supporting healing and recovery Maintaining muscle and strength Naturally limiting overall calorie intake when eaten first Animal-based proteins are often the easiest way to get all essential amino acids. If you follow a vegetarian or vegan diet after surgery, working closely with an RDN is especially important to ensure you are combining plant proteins properly to meet your body’s needs. Hydration Matters More Than You Think Staying hydrated is another key part of bariatric success, yet it is one of the most common challenges after surgery. Most patients are encouraged to aim for at least 64 ounces of fluid per day, choosing beverages that are noncarbonated, sugar-free, and alcohol-free. Hydration is essential because: High-protein diets increase fluid needs Rapid weight loss raises the risk of dehydration Vitamins and supplements rely on healthy kidney function After surgery, thirst cues may be weaker, and patients are often advised not to drink right before or after meals. This makes intentional sipping throughout the day especially important. Setting reminders, carrying a water bottle, and tracking intake can help support consistency. Vitamins and Minerals Are a Lifelong Commitment Taking bariatric-specific vitamin and mineral supplements is not optional. It is a lifelong part of protecting your health after surgery. Because bariatric surgery changes how nutrients are absorbed, even a well-balanced diet may not provide everything your body needs. Regular lab work is just as important as taking supplements daily. Without proper supplementation and monitoring, nutrient deficiencies can lead to serious health concerns such as: Bone loss and osteoporosis Iron deficiency anemia Nerve damage or numbness Fatigue and cognitive changes The goal is not just weight loss. The goal is long-term wellness. Patients and healthcare providers should work together to monitor labs and adjust supplements as needed. See the table below for an example of commonly recommended post-surgery vitamin and mineral dosages.1 Table 1. Post-Surgery Vitamin and Mineral Recommendations Supplement Total Dosage Adult multivitamin with iron Adult dosage, preferably a bariatric multivitamin Calcium 1,200mg Vitamin D 3,000IU B50 complex with thiamin 50-100mg Extra iron 45mg B12 500-1,000mcg, dissolvable Why Many People Say They Wish They Had Surgery Sooner Many people who undergo bariatric surgery share the same reflection. They have no regrets. Their improved health, increased energy, and better quality of life are the result of surgery combined with education, follow-up care, and daily commitment. While bariatric surgery does come with risks, ongoing support and proper nutrition dramatically improve outcomes. When patients stay informed and engaged, bariatric surgery can be the beginning of a healthier, more confident future. Reference 1. Mechanick JI et al. Endocr Pract. 2019;25(12):1346-1359.