Healthy diet tips: 7 essential dietary changes after bariatric surgery to lose weight

Weight loss surgery: Protein is essential for maintaining muscle mass and aiding recovery after bariatric surgery. Aim for 60–80 gm of protein daily. Good sources include lean meats, eggs, dairy, tofu, and protein shakes (Image: Canva)

Bariatric surgery is a weight-loss procedure that reduces stomach size or alters digestion to help people eat less and lose weight. It’s recommended for those struggling with severe obesity and related health issues. The success of this surgery depends on long-term dietary and lifestyle changes.

Bariatric surgery reduces the stomach’s capacity, which means patients need to make significant dietary adjustments to ensure proper nutrition and sustained weight loss, says Dr Karuna Chaturvedi, HOD, Dietetics, Max Super Speciality Hospital, Noida. “By following the right dietary habits, patients can maximise the benefits of the procedure and avoid potential health issues,” he says.

Dr Chaturvedi suggests 7 key dietary changes after bariatric surgery:

Also read | Bariatric surgery for obesity is gaining ground in India, but has a long way to go

Take sufficient protein: Protein is essential for maintaining muscle mass and aiding recovery after surgery. Patients should aim for 60–80 gm of protein daily. Good sources include lean meats, eggs, dairy, tofu, and protein shakes. “Getting enough protein not only helps preserve muscle but also keeps you full for longer, reducing hunger pangs,” advises Dr Chaturvedi.

Eat often, but eat less: After surgery, the stomach can only hold small amounts of food. Instead of three large meals, it is better to eat 5–6 small meals during the day. This prevents discomfort and helps with digestion. Each meal should be rich in nutrients to ensure balanced nutrition.

Drink water, but not with food: Staying hydrated is important. However, avoid drinking liquids with meals as it can cause discomfort and interfere with digestion. “It is best to drink water 30 minutes before or after meals to prevent your stomach from feeling overly full. Patients should aim for at least 1.5–2 liters of water daily while avoiding carbonated and sugary drinks,” he says.

Avoid high-sugar and processed foods: Foods high in sugar and unhealthy fats can lead to dumping syndrome, a condition that causes nausea, sweating, and diarrhea. To avoid this, it is important to remove sweets, white bread, fried foods, and sugary drinks from the diet. Instead, opt for whole grains, fresh fruits (in moderation), and nutrient-rich snacks.

Chew your food well and take your time eating: After bariatric surgery, the digestive system undergoes changes, making it essential to chew food thoroughly. “Chewing each bite 20–30 times before swallowing helps prevent blockages and promotes better digestion,” says Dr Chaturvedi. Eating slowly also reduces the risk of discomfort and overeating.

Also read | Weight loss tips: Beware of making these mistakes when you're trying to lose weight

Eat foods rich in nutrients: Since the stomach’s capacity is reduced, every bite should be packed with essential nutrients. “Dark leafy greens, lean proteins, dairy, nuts, and seeds provide vital vitamins and minerals. Most patients require lifelong vitamin and mineral supplements to prevent deficiencies,” adds Dr Chaturvedi. Regular follow-ups with a doctor ensure that nutrient levels remain balanced.

Skip caffeine: Caffeine can contribute to dehydration and increase acid reflux symptoms. “It is best to avoid caffeine for the first few months after surgery and only consume it in moderation later. Herbal teas and caffeine-free alternatives can be good substitutes," advises Dr Chaturvedi.

Long-term success with the right diet: Following these essential dietary changes can help bariatric surgery patients achieve sustained weight loss and maintain their health, he suggests, adding that by adopting healthy eating habits and being mindful of nutritional intake, patients can enjoy a successful and healthier post-surgery life.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.