The Blog

Liquids After Surgery

Following weight loss surgery, you will be required to follow a liquid only diet for around 2 weeks.  (unless your surgeon advises you differently) This is to allow the stomach area to heal properly. There is likely to be a lot of swelling around the stomach area, so liquids are able to pass through better without causing any problems at all.


Liquids should be thin in consistency with no lumps and bumps – basically they should fit through a straw however we don’t recommend you use a straw. Sip them slowly and have at least a 20 second rest between mouthfuls. You may find you can’t manage much and find you are having to sip almost continuously throughout the day. A recommended portion size is around 200 mls and the focus should be on protein containing liquids like milk, meal replacements, pulse-based soups and drinking yoghurt to aid healing. Aim to have around 5 or 6 portions daily depending on your chosen surgery and then drink extra water (or tea and coffee etc) to increase your total fluid intake. A good tip is to measure the colour of your urine – it should be pale and straw coloured however if it is darker and more concentrated it is an indication you need to drink more. The dietitians will help you during your post – operative consultations and give you so much more information to help.


Try this Wide-Awake SmoothieRecipe from BandBoozled:




150 mls skimmed milk

¼ banana

25 mls unsweetened orange juice

4 strawberries 

1 tablespoon oats




 Simply blitz all the ingredients together to create a simple and easy breakfast on the go! If you need to add extra fluid to create a thin enough consistency that is fine


Top Tip: you can add some ice to the smoothie before blitzing for an ice cold, refreshing drink

BandBoozled LTD is registered in England and Wales under number 10769332 with its registered office: 10 Eden avenue, ST HELENS, MERSEYSIDE, WA11 8HT.

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