[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-404148-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-404148-en":131},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","liquid-diet-before-bariatric-surgery-guidance-and-side-effects","Liquid Diet Before Bariatric Surgery - Guidance and Side Effects","","Liquid diet instructions are provided for patients ordered to follow a liquid diet before bariatric (weight-loss) surgery. The guidance explains how meal replacement drinks lower surgical risk by reducing liver size and supporting weight loss, while still providing sufficient protein, fat, vitamins, and minerals. It covers duration, when to stop drinking and fasting, what to avoid (including calorie-containing drinks), fluid volume targets, drink choices, meal replacement timing, and how to prepare liquid replacement products. Side effects such as constipation, diarrhea, dizziness, and fatigue are listed with practical remedies and tracking items to report to the healthcare team.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/healthcare/","Healthcare",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/liquid-diet-before-bariatric-surgery-guidance-and-side-effects/404148/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/liquid-diet-before-bariatric-surgery-guidance-and-side-effects/404148.png","ImageObject",300,407,{"name":42,"@type":43},"Stanley","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-09-27",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",12,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"Why is a liquid diet ordered before bariatric surgery?","Question",{"text":63,"@type":64},"It helps lower surgical risk by making the liver smaller and supporting weight loss. Meal replacement drinks provide fewer calories and less carbohydrate than usual eating.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How long is most people on the liquid diet before surgery?",{"text":68,"@type":64},"Most people follow the liquid diet for 2–6 weeks before surgery. The surgeon and dietitian create a personalized plan.",{"name":70,"@type":61,"acceptedAnswer":71},"What side effects can happen and what helps?",{"text":72,"@type":64},"Possible side effects include bad breath or dry mouth, constipation, diarrhea, dizziness, and tiredness (fatigue). The document provides specific supportive actions, such as increasing fluids, using a fiber supplement for constipation, and contacting the healthcare team for worsening symptoms.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},404148,1791010229,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,101,106,110,115,120,123,127],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},5,"Comic",60,"comic",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":103,"show_sort_weight":104,"slug":105},6,"Technology",50,"technology",{"id":107,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":108,"slug":109},7,40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":124,"doc_module":4,"doc_module_name":25,"category_name":125,"show_sort_weight":124,"slug":126},10,"Lifestyle","lifestyle",{"id":128,"doc_module":4,"doc_module_name":25,"category_name":129,"show_sort_weight":97,"slug":130},19,"General","general",{"code":4,"msg":82,"data":132},{"doc_id":79,"user_id":133,"nickname":42,"user_avatar":134,"doc_module":4,"category_id":107,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":26,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":97,"preview_page_count":4},2336477405376,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Your surgeon has ordered a liquid diet before your bariatric surgery. This can help lower your risk of surgery by making your liver smaller and helping you lose some weight.  \nThe meal replacement drinks on the liquid diet provide fewer calories and less carbohydrate than you usually eat. They will still provide enough protein, fat, vitamins, and minerals to meet your needs. These drinks replace all your meals and snacks.  \nHow long will I be on the liquid diet?  \nMost people are on the liquid diet for 2–6 weeks before surgery. Your surgeon and dietitian will work with you to make a plan that’s best for you.  \nI will be on the liquid diet for   weeks.  \nYou will receive special instructions about what todo on the day before surgery. The instructions will tell you when to stop the liquid diet and when to stop drinking all fluids (fasting) .  \nDoes the liquid diet include anything other than the meal replacement drinks?  \nNo; the liquid diet works best when the meal replacements replace all meals and snacks. If any changes are needed, your doctor or dietitian will talk to you about it.  \n􀁸 Don’t have alcohol or other drinks with calories while you’re on this liquid diet.  \n􀁸 You can use sugar-free gum.  \nIdeas to add variety:  \n􀁸 You can add calorie-free flavours to the meal replacements such as instant coffee, cinnamon, sugar-free syrups, or extracts like vanilla.  \n􀁸 You can add ice and use a blender or a mixer on the lowest speed to make a frothy shake.  \nHow much fluid do I need?  \nMost people need 2700–3700 mL (11–15 cups) of fluid each day. The meal replacements do not provide enough fluid to meet all of your needs. In addition to the meal replacements, drink 1500–2500 mL (6–10 cups) of calorie-free fluids each day. Calorie-free fluids have less than 5 calories in a serving. Choose:  \n􀁸 water  \n􀁸 tea or coffee with no milk, cream, or sugar  \no sugar substitutes are ok to use  \n􀁸 sugar-free or zero calorie drinks or drink mixes  \no drinks with no bubbles (non-carbonated) You can also have 250–500 mL (1–2 cups) of clear low sodium broth each day.  \nMy liquid diet before surgery I will start my liquid diet on    \n(Date)  \nMeal replacement:  \nAmount:   every day  \nI will also drink   water and other calorie-free fluids every day.  \nNotes:  \nWhen do I drink the meal replacements?  \nDrink the meal replacements at the times you would usually have meals, about 4–5 hours apart.  \n􀁸 Drink a meal replacement for breakfast, and then use one for lunch and one for supper.  \n􀁸 Drink the other meal replacements at snack times (for example, afternoon and evening) . If you only have one meal replacement for snacks, you can drink half for an afternoon snack and half for an evening snack.  \nMost meal replacements are ready to drink. For powdered meal replacements, mix each package with water. Follow the directions on the package. To prevent clumping, mix each one just before you plan to drink it.  \nWhere can I get the meal replacements?  \nYou can buy them at most grocery stores and pharmacies. If you can’t find the right product, ask the store pharmacist or your dietitian. Only use the type and amount of product that is recommended for you.  \nWill I be hungry?  \nYou may feel hungry when you start the meal replacements. After the first few days, your body will get used to eating fewer calories and you should feel less hungry. Drinking the meal replacements about 4–5 hours apart can help manage your hunger.  \nSome people don’t feel hungry on the liquid diet and may forget to drink a meal replacement. It’s important to drink all of the meal replacements every day.  \nWhat about my medicines?  \nYour doctor may change some of your medicines while you’re on the meal replacements. Medicines that may need to be changed include those for diabetes or high blood pressure, water pills or blood thinners.  \nAre there any side effects?  \nSome people have side effects when they’re on the liquid diet. Use the chart below, and tell your healthcare team about an","cbCainvoqYFxblaC","https://ap.wps.com/l/cbCainvoqYFxblaC","pdf",231026,"English","# Liquid Diet Purpose and Duration\n## Meal Replacement Drinks and Nutrition\n## When to Start, Stop, and Fast\n# What the Diet Includes\n## Allowed Additions and Avoidance\n## Alcohol and Sugar-Free Options\n# Fluid Requirements and Choices\n## Daily Fluid Amounts\n## Calorie-Free Beverage Guidance\n# Meal Replacement Schedule and Preparation\n## Timing Relative to Meals and Snacks\n## Ready-to-Drink and Powdered Mixes\n# Hunger and Medication Considerations\n## Hunger Management\n## Possible Medicine Adjustments\n# Side Effects and What May Help\n## Side Effects Chart and Remedies\n# Monitoring and Journal Tracking","[{\"question\":\"Why is a liquid diet ordered before bariatric surgery?\",\"answer\":\"It helps lower surgical risk by making the liver smaller and supporting weight loss. Meal replacement drinks provide fewer calories and less carbohydrate than usual eating.\"},{\"question\":\"How long is most people on the liquid diet before surgery?\",\"answer\":\"Most people follow the liquid diet for 2–6 weeks before surgery. The surgeon and dietitian create a personalized plan.\"},{\"question\":\"What side effects can happen and what helps?\",\"answer\":\"Possible side effects include bad breath or dry mouth, constipation, diarrhea, dizziness, and tiredness (fatigue). The document provides specific supportive actions, such as increasing fluids, using a fiber supplement for constipation, and contacting the healthcare team for worsening symptoms.\"}]","Liquid Diet Before Bariatric Surgery - Guidance and Side Effects | PDF",1790546063]