Post-Op Care – Bariatric Surgery Diet (Weeks 3–4: Purée Phase)

You are here: Stage 2 (Weeks 3–4) – Purée phase.

Overview

This guide explains the purée diet phase during weeks 3–4 after sleeve gastrectomy. At this stage your stomach is still healing, and foods must be smooth and easy to digest to prevent nausea, vomiting, and discomfort.

What the purée diet means

• All foods must be blended to a smooth consistency with no lumps.
• Use a blender or food processor to achieve the correct texture.
• Add water, low-salt stock, sauce, or gravy to thin foods if needed.
• Avoid dry or crumbly foods as they do not purée well.

Portion sizes and meal frequency

• Measure each meal to a maximum of ½ cup.
• Aim for 4–5 small meals per day.
• Your appetite will be reduced – this is normal.
• Use a measuring cup or mark the level on a small bowl or mug.

How to eat

• Take very small mouthfuls.
• Use a teaspoon or small fork.
• Eat slowly.
• Aim for one bite per minute (about 20 teaspoons over 20 minutes).
• Put cutlery down between bites.
• Chew thoroughly before swallowing.
• Do not swallow food immediately.

Drinking with meals

• Do not drink with meals.
• Stop drinking 30 minutes before eating.
• Wait at least 30 minutes after eating before drinking again.
• Drinking during meals may cause nausea and early fullness.

Hydration goals

• Aim for at least 2 litres of fluid per day.
• Drink water regularly throughout the day.
• Room-temperature or warm drinks may be easier to tolerate.
• Tea, coffee (with milk), low-calorie cordial, and sugar-free flavoured water are allowed.
• Unflavoured mineral water is allowed in moderation.

Avoid during this phase

• High-calorie drinks (fruit juice, smoothies, sports drinks, milkshakes)
• Alcohol
• Carbonated or fizzy drinks
• Foods that are not fully puréed

Protein requirements

You should aim to consume at least 50–60 grams of protein per day to support healing and preserve muscle mass.

• Always eat protein foods first.
• Include protein at every meal.
• Protein may come from food or supplements.

Examples of protein sources (purée form)

• Egg (scrambled or poached, mashed thoroughly)
• Chicken, beef, pork, or fish (blended smooth)
• Lentils, chickpeas, red kidney beans, lima beans (blended)
• Tofu (silken tofu preferred)
• Low-fat yoghurt
• Cottage cheese or ricotta (blended)
• Protein soups or shakes

Vitamins and supplements

• Daily multivitamin is required long-term.
• Liquid multivitamins or chewable bariatric vitamins are recommended.
• Calcium may be required twice daily (up to 2 teaspoons per dose).

Common side effects and how to reduce them

• Gas and bloating – walking and warm drinks may help.
• Constipation – drink enough fluids and consider gentle fibre if advised.
• Diarrhoea – often improves as diet stabilises.
• Nausea or vomiting – usually caused by eating too fast or too much.

Tips to improve tolerance

• Add bran to meals before blending if needed.
• Introduce fibre gradually (maximum 8 teaspoons per day).
• Ensure fluid targets are met daily.
• Use gentle walking to help bowel movement regularity.

Sample purée meal ideas

• Scrambled egg with low-fat milk
• Puréed chicken or fish with gravy
• Puréed lentil or bean soup
• Puréed baked beans
• Low-fat yoghurt
• Protein shakes or meal replacements (½ portion at a time)

When to contact us

• Persistent vomiting
• Inability to tolerate fluids
• Severe abdominal pain
• Signs of dehydration
• High fever

Contact – My Imperial Care

Email: support@myimperial.care
WhatsApp: +90 541 859 04 15