What’s more, many of these programs are not meant to be followed in the long term.Ĭertain liquid diets don’t allow any solid foods and thus may not contain all the beneficial nutrients found in whole foods like fruits and vegetables ( 10). It is important to note that people participating in studies on low-calorie liquid diets are typically monitored closely by medical personnel. While very low-calorie diets can lead to greater weight loss, they may also lead to greater risks, such as an increased risk of gallstones in some individuals ( 7). Research has shown that both low-calorie (1,200–1,500 calories per day) and very low-calorie (500 calories per day) diets using liquid meal replacements can be effective for weight loss. In studies of liquid meal replacement diets, it is common to use this pattern of reintroducing solid foods after a liquid diet has been followed for one to three months ( 3, 9). This program was effective for weight loss and reduced body fat from 33% to 26%. Daily calorie intake increased gradually from 700 to 1,200 calories. Over the next 150 days, solid foods were gradually reintroduced. However, these diets are often just one phase of an overall weight loss program.įor instance, one weight loss study in 24 obese people involved a 30-day period in which participants consumed 700 calories per day from meal replacements but no solid foods ( 9). Liquid diets often contain fewer calories than diets consisting of solid foods.įor a liquid meal replacement diet, the total number of daily calories may range from 500–1,500 ( 7, 8). There are several types, including meal replacement programs, cleanses and medically They allow most beverages, as well as foods that become liquid at room temperature, such as popsicles, Jell-O, pudding, syrups and some shakes ( 6).ĭiets replace some or all food with beverages. These diets may be prescribed before or after certain surgeries or if you have digestive problems.įull liquid diets are prescribed for similar reasons, but they are less restrictive than clear liquid diets. Medically Prescribed Liquid DietsĬlear liquid and full liquid diets are examples of diets that are medically prescribed for specific health reasons.Īs the name implies, clear liquid diets only allow the consumption of clear liquids, such as water, apple juice, tea, certain sports drinks and broths ( 5). Unlike meal replacement shakes, these programs typically rely on a few natural ingredients like juices from certain fruits and vegetables and other botanical ingredients.īecause of this, these diets may not contain all the nutrients your body needs. Other liquid diets include detox diets or cleanses, which require the consumption of certain juices or drinks that supposedly remove toxic substances from your body ( 4).Įxamples of these diets include the Master Cleanse, long-term water fasting and various juicing programs. Some weight loss programs use these shakes to account for your entire calorie intake for up to several months ( 3). They are designed to contain all the nutrients your body needs to function, including macronutrients (protein, carbs and fat) and micronutrients (vitamins and minerals) ( 2). They can replace one or multiple meals each day ( 1). Meal replacement shakes are often lower in calories than typical meals. Numerous companies sell these shakes for weight loss purposes. Some liquid diets involve meal replacement shakes, which are consumed in place of solid foods. While there are many liquid diets, most can be grouped into one of the following categories. doi:10.1016/j.gie.2015.09.Liquid diets are nutrition programs that require you to get either some, most or all of your daily calories from liquids, rather than solid foods. Low-residue versus clear liquid diet before colonoscopy: a meta-analysis of randomized, controlled trials. Gastrointest Endosc. Nguyen D, Jamal M, Nguyen E, Puli S, Bechtold M.Rammya Mathew: Liquid diets offer promise, but we still need upstream solutions. BMJ. An Exploratory Study: Clinical Dietitians Do Not View the Full Liquid Diet as Best Practice for the Post-operative Patient. Journal of Nutrition & Food Sciences. Dietetic intervention for inpatients on fluid‐only diets helps to achieve nutritional requirements. Effect of Diet Liberalization on Bowel Preparation. South Med J. Avalos D, Sussman D, Lara L, Sarkis F, Castro F.Full Liquid Diet | Gillette Children’s Specialty Healthcare.Endoscopic Intramural Surgery Part II: Muscular Division. Dig Dis Interv. Barajas-Gamboa J, Corcelles R, Kroh M.University of Texas-Southwestern Medical Center: UT Southwestern Develops Medically Supervised Liquid Diet Program.
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