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Weight loss surgery can be a life-changing experience, offering patients the opportunity to shed excess kilos and improve their overall health. However, in order to optimize your results and recovery, it is essential to follow a carefully crafted diet plan.
What such a diet is all about and the science behind it
Bariatric surgery is the classification given to medical interventions that treat severe obesity with surgical procedures. There are four types of bariatric surgeries, some of which you may have heard of over the years: gastric bypass, sleeve gastrectomy, gastric band, and duodenal switch. They’ve all proven somewhat successful in treating class III obesity (BMI over 40), and are also known to help normalize metabolism, blood sugar, blood pressure, and cholesterol in patients. This treatment entered the mainstream lexicon in India around 2014, when former minister Arun Jaitley underwent gastric bypass surgery to manage diabetes.
The best diet for weight loss surgery patients is a low-calorie, high-protein, low-fat, and low-carbohydrate diet. Such a diet focuses on consuming nutrient-dense foods that provide essential vitamins and minerals while limiting calories to support weight loss. The science behind this diet is based on the fact that after surgery, the stomach's size is reduced and the ability to consume large meals is limited. Consuming nutrient-dense foods that are rich in protein and low in calories helps the body stay satiated for longer periods, thus reducing the need for frequent snacking.
Understanding macronutrients in a diet for weight loss surgery patients
- Protein is the most important macronutrient in the best diet for weight loss surgery patients. It helps maintain muscle mass, supports wound healing, and keeps one feeling full and satisfied. 60–80 grams of protein per day, depending on body weight and activity level, is considered ideal. Good sources of protein include lean meats, fish, poultry, beans, and dairy products.
- Fats are an essential part of any healthy diet, but after weight loss surgery, it's crucial to consume healthy fats in moderation. Saturated fats and trans fats must be avoided. The emphasis must be on consuming monounsaturated and polyunsaturated fats. Good sources of such healthy fats include olive oil, nuts, and seeds.
- Carbohydrates are an important energy source for the body, but after weight loss surgery, it's important to limit carbohydrate intake. No more than 50–100 grams of carbohydrates per day should be consumed, depending on body weight and activity level. Good sources of carbohydrates include whole grains, fruits, and vegetables.
How this diet helps with weight loss
The diet for weight loss surgery patients helps maintain a reduced weight by providing the body with nutrient-dense foods that keep the body feeling full and satisfied while limiting calorie intake. This diet also focuses on consuming protein-rich foods, which help maintain muscle mass and keep the metabolism at healthy levels. By consuming fewer calories than your body needs, you'll create a calorie deficit that results in weight loss.
How to follow a diet tailored for weight loss surgery patients
The diet plan varies depending on the individual's situation, but there are some general guidelines that are recommended by healthcare providers.
Before Surgery
Full liquid diet: A week or two before surgery, patients switch to a low-sugar, low-fat, full-liquid diet (around 1900 ml per day) that's high in protein and low in carbs. Protein is important for healing and tissue repair after surgery.
After Surgery
Following weight loss surgery, a recovering patient’s diet involves a gradual transition through four main stages, each with specific dietary guidelines:
- Clear Liquids (Week 1): In the first week after surgery, only clear liquids such as water or broth are allowed. Aim to consume 200 ml (approximately) of fluid per waking hour to stay hydrated.
- Pureed Foods and Protein Shakes (Weeks 2-3): After one week of clear liquids, you will transition to pureed foods and protein shakes. Focus on consuming 60–70 grams of protein and approximately 1900 ml of clear liquids per day.
- Soft Foods (Weeks 4-5): Gradually reintroduce soft foods, such as cooked vegetables and soft meats, into your diet. Continue to prioritize protein intake and consume approximately 1900 ml of clear liquids daily.
- Solid Foods (Week 6 onwards): Transition to a solid food diet, focusing on high-quality protein sources, low-carbohydrate options, and nutrient-dense foods. Maintain a daily intake of 60–70 grams of protein and approximately 1900 ml of clear liquids.
Fitness tips for weight loss surgery patients on such a diet
In addition to following a healthy diet, it is important for weight loss surgery patients to engage in moderate physical activity to support their new lifestyle and overall health. Here are some fitness tips to consider:
- Start by walking daily, gradually increasing your steps and intensity as you heal.
- Aim for at least 30 minutes of exercise five to seven days a week.
- Listen to your body and consult your healthcare team before starting any new exercise program.
- Remember to avoid lifting more than 4.5 kg for at least six weeks after surgery to prevent hernias.
Common mistakes to avoid while on a diet for weight loss surgery patients
One of the most common mistakes people make while on a new diet after weight loss surgery is consuming too many liquid calories. After surgery, your stomach can only hold small amounts of food, and consuming liquids can easily fill up your stomach, leaving little space for nutrient-dense foods. It's also important to avoid consuming foods that are high in fat, sugar, and empty calories, as they provide little nutritional value and can hinder your weight loss efforts. Finally, it's essential to avoid skipping meals or going too long without eating, as this can lead to overeating and poor food choices again.
How to track your progress in weight loss
Tracking your progress is an essential part of any weight loss program, and it's no different when following a diet meant for weight loss surgery patients, especially given the rapid changes over the first six weeks or so. Start by tracking your food intake using a food diary or mobile app. This will help you keep track of your calorie intake, macronutrient ratios, and portion sizes. You can also track your weight loss progress by weighing yourself regularly and taking measurements of your waist, hips, and thighs.
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Tips to manage hunger and cravings after weight loss surgery
- Consume protein-rich foods: Protein helps keep you feeling full and satisfied, making it an essential part of the best diet for weight loss surgery patients.
- Stay hydrated: Drinking plenty of water throughout the day can help reduce hunger and prevent overeating.
- Avoid trigger foods: Identify foods that trigger cravings and avoid them as much as possible.
- Keep healthy snacks on hand: Having healthy snacks such as fruits, vegetables, and nuts on hand can help curb hunger and prevent overeating.
The ideal diet for weight loss surgery patients is a well-balanced, phased approach that focuses on high-quality protein sources, low-carbohydrate options, and nutrient-dense foods. By following these recommendations and incorporating regular physical activity, you can optimize your weight loss results and recovery, setting the stage for a healthier, happier future.