Liquid Diet: What Is It & How To Do It

Liquid Diet: What Is It & How To Do It

There are many ways you can do a liquid diet for weight loss and only one specific liquid diet doesn’t exist. There are many variations of a very low-calorie diet that has you subsist on juice, smoothies, clinically prepared nutritional drinks, and lemon juice for days, weeks, or even months. Some of these diets are used by medical professionals to intervene in cases of diseased obesity; others are followed by Hollywood starlets looking to lose weight fast for some character role. If you decided that you want to lose weight fast with a liquid diet you have to educate yourself on the risk and implications before choosing one.

While they can be effective, liquid diets are not always a healthy weight loss plan. Some liquid weight loss plans are simply not a good idea to follow unless you are under medical care and supervised by your health counselor. However, you can lose weight very quickly if you follow one, but it may not be worth the long-term consequences. So before deciding that you want to go with such a diet please read the following article carefully brought to you by professional nutritionists and health counselors.

What is a Liquid Diet

What you should know about liquid diets is that they involve replacing all solid, whole food with smoothies, juice, frozen bars, soups, or some kind of combination of any or all of these products. The results from a liquid diet appear very quick in weight loss and this is simply because you limit calories severely when you decide to cut out whole foods.

Why Is a Liquid Diet Different From Others

Unlike many other popular diets and nutritional regimes, the liquid diet or nutrition mostly or entirely with fluids is also widely used in medicine. It aims to achieve the desired effects and accelerate the recovery process. This diet is recommended before performing certain tests or medical manipulations, as well as in the postoperative period.

The method is also suitable for relieving the symptoms of certain diseases. The most effective liquid diet allows the intake of enough nutrients, but in a form that provides rest for the digestive system. Liquid foods are digested by the gastrointestinal tract a lot faster than solid foods.

What is a Liquid Diet

How Many Pounds Can You Lose

Weight loss is noticed when you consume fewer calories than you burn. A normal person needs about 2,000 calories per day to maintain current body weight. You should keep in mind that most liquid diets contain 600 to 1,000 calories per day, which means that you are creating a large deficit essentially starving yourself and that will result in inevitably losing weight. It will inevitably result in losing weight. You shouldn’t confuse a liquid weight loss diet with an all-liquid diet that is recommended after or before certain surgeries or medical procedures. These diets aren’t made to be low in calories, but to be gentler on the gut and easier to digest.

What Is Allowed and What Is Not

Drinking fluids during the diet doesn’t mean that you can drink whatever you want. Not at all. The weight loss liquid diet excludes alcohol, packaged juices, cocoa, high-fat dairy products, soda, and other sweet but harmful substances. Solid foods and foods containing vegetable oil, sugar, glucose, greasy sour cream, and fatty broths are also excluded from the diet.

What is allowed when you are on a liquid diet then? Any non-fat broth, drinking water (at least 1.5 liters), non-fat and unsweetened dairy products, freshly squeezed juice(including fruit and vegetable mixtures), fruit teas, fruit drinks, and fruit jelly without sugar, diet soups.

Losing Weight on Liquid Diets

In some cases of extreme obesity, a health counselor may put the patient on a very low-calorie liquid diet to shed pounds quickly. This can avert an immediate medical consequence leading from excess weight or prepare a patient for bariatric surgery. Normally people who are on this type of diet lose 3 or more pounds per week, but the process should be supervised by a doctor to make sure no complications happen.

However, there are many non-medical versions of liquid diets too. To lose weight quickly, proponents of liquid diets require you to stick to low sugar or vegetable juices and avoid whole foods. You may choose to consume home pressed or bought juice for all meals. Of course, other liquid diets may have you sip broth or smoothies instead of consuming fruits, vegetables, lean protein, and whole grains.

You should keep in mind that these diets aren’t usually made by a doctor or dietitian. They simply work because you reduce your calorie intake which results in losing weight. You will see even faster results if you just stick to the liquids only and don’t snack to supplement.

Liquid Diet Types According to The Purpose

For medical purposes

This is the best liquid diet for treating diseases. It relieves the symptoms of certain disease states, postoperatively, before certain manipulations. It is also prescribed postoperatively and before certain manipulations.

For weight reduction

This liquid diet is recommended for weight loss at home, as it uses mainly low-calorie products. This type of nutrition is appropriate as part of a comprehensive treatment regime for weight loss.

For detoxification

Also known as a liquid diet to lose weight in 3 days, this method improves the body’s natural detoxifying abilities. It is especially useful to take drinks enriched with some natural detoxifying agents while being on this specific liquid diet.

Liquid Diet Types According to The Effect

Depending on the desired goal to be achieved and the specific condition of the patient, there are two options (two variants of application) for the liquid diet, namely a full liquid diet or a semi-liquid diet.

Full liquid diet

The full liquid diet is extremely restrictive. It allows only food and beverages in liquid form and transparent consistency. These are water, apple juice, pure broth, gelatin.

When following a liquid diet before certain medical interventions, it is recommended to avoid red fruits and vegetables. The reason is that they can lead to staining of fecal masses and mislead specialists about the false presence of blood in the stool.

With this diet, you can lose up to 10 kg. for 7 days. However, do not overdo it. Frequent practice of this liquid diet for weight loss can lead to serious health problems. Liquid foods do not contain fiber, so if you overdo it, intestinal peristalsis and chronic constipation are possible.

Also, it is difficult to get a full range of nutrients because of what is allowed on full liquid diet. Usually, those who follow such diets, without having to, face a deficiency of vitamins A, B1, and B12, as well as iron. If you want to survive a clear liquid diet this should be taken into account and these nutrients should be taken additionally.

Full liquid diet

Semi-liquid diet

In the semi-liquid diet, the set of permitted foods is larger. It includes fruits and vegetables, in some cases, milk, shakes (protein shakes, products enriched with various vitamins and minerals). Adherence to a semi-liquid diet replaces one or all meals with fluids. Sufficient water intake is also recommended to facilitate the detoxification of the body.

The semi-liquid diet when used for medical purposes is usually a bridge between the strictly liquid diet and the transition to soft foods after surgery. It is used in recovery and during the course of certain diseases.

If you wonder how to lose weight on a liquid diet, bet on a semi-liquid diet. It works best for weight loss. Especially when breakfast and/or lunch are replaced with liquid foods, and a healthy meal rich in fiber, protein, and fat is prepared for dinner.

Liquid Diet Features

It is almost impossible to lose weight quickly and without harm to health. Liquid diets are definitely the most effective way. In addition to eliminating excess weight, during the diet, toxins in the body are also reduced. Such cleansing will positively affect the appearance of the skin, hair, nails.

The main difference between a liquid diet and the other diets is the involvement of the organs. In the case of the liquid diet, only the intestines, liver, and urinary system work. This allows the stomach to narrow. All the other diets include the gastrointestinal tract as well.

A large amount of water

It is no coincidence that the diet is called liquid. Eating lots of liquid foods can quickly satisfy your hunger while consuming minimal calories. That is why liquid food allows you to lose weight effectively.

Soft texture

Water-based food allows the body to quickly absorb all the necessary substances and eliminate the processed product. At the same time, nothing is stored as fat. Are liquid diets safe and effective? Certainly, if you follow them correctly and adhere strictly to their principles.

Liquid Diet Features

Biochemical processes in the body

The success and effectiveness of the liquid diet lie in the structure of the human body. Everyone knows that it consists of 90% water. With its absence, it is simply impossible to burn fat in the cells. That is why the main weight loss occurs during the first 4 days of the diet.

On a liquid diet, the body is saturated with a sufficient amount of fluid. Then begins the active synthesis of proteins that are responsible for the consumption of body fat. Weight loss will be followed by fatigue and constant tiredness. When the body gets used to the fact that it takes in enough fluid, the weight begins to drop steadily, about 600-700g per day.

Water balance

The liquid diet allows the water balance in our body to stabilize and maintain. Most diets are based on strict dietary restrictions. The less food, the less fluid enters the body. That is why almost all types of weight loss lead to a constant feeling of fatigue and weakness. This indicates dehydration. Lack of water in the body affects not only health but also weight loss – it can stop completely.

How to Start a Liquid Diet

The duration of a liquid diet should not exceed 14 days. Depending on how many extra pounds you need to lose, you can choose a one-week diet or a two-week diet.

Milk and kefir, broths, herbal teas, and decoctions are allowed during the diet. It is important to note that it is not necessary to focus on one component, for example, to drink only juices. The more varied your diet, the more beneficial it is, and the faster and easier it will be.

Three days of preparation

It is worth noting that you can not abruptly start any liquid diet for weight loss. In principle, it should start with the preparatory phase. For the liquid diet, this phase consists of three days.

Liquid diet recipes for the first day:

Breakfast: milk porridge (you can also eat cereal porridge, such as semolina, oatmeal, millet, or buckwheat);
Second breakfast: a glass of kefir (fat-free);
Lunch: soup on vegetable broth + a small piece of boiled beef + bread;
Afternoon snack: apple or orange;
Dinner (no later than 19:00): steamed vegetables.

Menu for the second day:

Breakfast: stewed vegetables that can be lightly salted;
Lunch: a glass of milk with the lowest fat content;
Lunch: buckwheat porridge (without adding oil!) + A small piece of boiled beef seasoned with dill;
Afternoon snack: a handful of cashews;
Dinner: boiled potatoes or mashed potatoes in milk.

Last third day of preparation:

Breakfast: liquid mashed potatoes in water, without salt;
Second breakfast: herbal tea without sugar;
Lunch: salad of freshly grated carrots, seasoned with honey;
Afternoon snack: a glass of fat-free kefir;
Dinner: same as for breakfast.

A few important notes

During the preparation of the body for a liquid diet, you can drink a glass of kefir (1%) on all three days at night.

The preparatory stage is very important. It allows you to adapt the body to the upcoming rather restrictive liquid diet and to accept it without stress and interruptions.

How to Do a Liquid Diet

You should be prepared that in the next 7-14 days your regimen will be the same. It is also important to remember that one of the most important liquid diet tips is that meals should not be skipped during the diet. The diet should be followed strictly, including mealtimes.

Liquid Diet Menu:

8:00: oatmeal broth;
9:00: vegetable broth;
10:00: fresh or dried apple compote;
11:00: vegetable or fruit freshly squeezed juice;
Noon: skim milk;
13:00: a glass of boiling water;
14:00: fruit or strawberry broth (you can also sweeten dried fruit compote);
15:00: meat broth;
16:00: a glass of boiled water;
17:00: a glass of water or vegetable juice;
18:00: freshly squeezed juice of all fruits (except grapes), diluted with water (in a ratio of 1: 1);
19:00: vegetable broth;
20:00: a glass of boiling water;
21:00: low-fat kefir.

The Liquid Diet Outcome

The process of leaving the diet is no less important than the preparatory stage. It is necessary, after a long restriction, that the body also does not experience the stress of an abundance of food. That is why the way out must be gradual.

The mode of exiting the liquid diet is similar to the diet for the preparatory phase. But it must go in reverse order, and the days must be repeated twice.

Liquid Diet Pros and Cons


The quick liquid diet regime allows you to get rid of extra kilograms. In the first week, the diet will help you get rid of 5 extra kg. However, this diet has several other positive aspects. If you know how to stick to a liquid diet you do not need to count calories. It does not require large financial costs, but cleanses the body of accumulated toxins and rejuvenates the body.

Excellent results

Well, first, the liquid diet gives excellent results. For example, for 7 days on a liquid diet, you can lose about 3-5 kg of excess weight. If you stick to a liquid diet for 14 days, then the total weight loss can be about 7-8 kg!

Liquid Diet Pros and Cons

Reduce the size of the stomach

Secondly, the liquid diet aims to reduce the size of our stomach. As you know, excessive food intake increases the size of our stomach, which in turn leads to an increase in our appetite. By reducing the size of the stomach, the liquid diet allows you to return to the originally normal portions of food and not overeat.

Purification of the body

Well, and third, a liquid diet is a purifying diet. During a liquid diet, get rid of toxins and poisons in your body. We will let you how to do a liquid diet for weight loss the right way. Thus it will restore the normal functioning of the gastrointestinal tract.


You should not follow a liquid diet for more than 14 days. In the future, this can provoke problems with the gastrointestinal tract. If you consume only liquid food for a long time, the digestive system will get used to it and will not be able to cope with ordinary food.

Who Should Not Do a Liquid Diet

The liquid diet is contraindicated in people with digestive problems. It is not recommended for diseases of the urinary system. This is a particularly important point, as this system is actively involved in the liquid diet. People with diabetes in any form should also avoid it.

The diet is also prohibited for pregnant and lactating mothers. The ban is related to the fact that during these periods a woman feeds not only her body but also the child’s body. The body in this case needs more than ever valuable vitamins and minerals. It will receive them only if the mother eats properly.

Talk to Your Doctor

Before deciding to go on a liquid diet, it is very important to talk to your health care provider. Certain people such as diabetics who take insulin, pregnant, or nursing women should not do a liquid diet. If your doctor approves, meet with a registered dietitian. He should give you some great tips and can help you to come up with ideas on how to do the diet safely and also to recommend some commercial options that might make the liquid diet more convenient.

It is very important to remember to get all the recommended minerals and vitamins each day, as well as to stay in the safe ranges of calories. According to some studies, there is no conclusive evidence to support that getting calories in liquid form, except soup affects body weight or energy intake.

Liquid Diet Recipes

Liquid Diet Recipes

The menu for a liquid diet is quite simple and you should follow it throughout the diet. For convenience, meals are scheduled in exact hours. And we will help you with a few recipes.

The Menu During the Diet

9 a.m.

Drink a glass of oatmeal. To prepare it, pour 2 tablespoons of oatmeal with 2.5 cups of water. When the water boils, let it boil for 10 minutes. Then the broth should be filtered and drunk. Drink also a cup of coffee or tea without sugar.

10 a.m.

One cup of vegetable broth. Prepare the broth as follows: two onions, one tomato, dill and parsley, beets, a glass of white cabbage. Pour 1.5 liters of water and bring to a boil over low heat. Cook for about an hour, then cool the broth and drink.

11 a.m.

Drink a glass of boiled water


One glass of diluted fruit juice. For a liquid diet for weight loss, dilute three-quarters of a glass of juice with water and drink. Please note that only freshly squeezed juices should be used, as purchased juices contain sugar.

01 p.m.

Drink a glass of skim milk – 1-1.5%.

02 p.m.

Drink a glass of hot boiled water

03 p.m.

A glass of fruit compote.

04 p.m.

One cup of weak meat broth. For its preparation use low-fat meats: beef, veal, chicken, turkey. Finely chop 200 grams of meat, pour 4 cups of cold water, add salt and cook for an hour. Then the broth should be cooled and properly filtered.

05 p.m. and 06 p.m.

Drink a glass of hot boiled water.

07 p.m.

One glass of diluted vegetable juice. Mix 50 grams of carrot and 50 grams of cabbage juice, dilute with warm boiled water. You can also dilute pumpkin juice with water.

08 p.m.

Drink a glass of vegetable broth again.

09 p.m.

Drink a glass of hot boiled water.

10 p.m.

And before going to bed, a glass of kefir with a fat content of not more than 2.5%.

The Menu After the Liquid Diet

To achieve the desired result from the liquid diet, after it you must adhere to a certain regimen for several days. As your body is used to receiving only liquids, it must be prepared for normal food. To do this, slowly add to your diet dishes which are not hard and coarse. Nutritionists advise starting with the introduction of vegetables, which are best in the form of mashed potatoes.

On the first day when you leave the liquid diet, include broccoli, carrots, cauliflower, and greens in your diet. You can also add low-fat or natural yogurt. Enrich the mashed potatoes with a small amount of vegetable oil.

On the second day, when you leave the liquid diet, add cereals to your diet. They should be in the form of well-cooked porridge, such as rice, oatmeal, wheat mash.

On the third day, you can add fruits to vegetables and cereals. Start varying the fruits as well.

One of the basic rules for getting out of a liquid diet is drinking water. Between meals, you should drink 2 or 3 glasses of warm boiled water. Also, eat often, but in small portions. Leaving a liquid diet can take a week, during which time you can also lose weight.

Which Diet to Choose

Medically required liquid diets like the ones before or after surgery, range from allowing all liquids and semi-liquid foods, including soup, soda, fruit juices, and gelatin, to just liquids you can see through. The latter category includes sports and tea drinks. According to some studies, the most promising liquid diets include those that require you to replace all of your meals with fruit or vegetable juices or shakes. But there are also some effective diets which allow you to replace just one or two meals with liquid and go for a healthy dinner or a snack bar.

The latter option is more likely to teach you healthy habits, but no matter which one you choose, you should consider a plan that’s not too low in calories. Talk to your doctor about figuring out a safe minimum calorie intake. If you decide to go with a liquid diet supplement, pick a supplement that contains 100% of the recommended minerals and vitamins, at least 25 grams of fiber, and 60 grams of protein, along with a healthy source of fat.

Diet Based on Smoothies

This liquid diet is designed for 7 days. Meals are 3-4 times a day. Only smoothies and clean boiled water are consumed. In one week you can lose 7-9 kg without harming your health.

For those who find it very difficult to tolerate such a diet, the menu can be diversified a bit. In this case, add oatmeal or buckwheat porridge, low-fat chicken or fish, low-fat dairy products to the diet.

The weight loss process is effective and very fast, the fluid does not remain in the stomach, passes through the intestines, relieving the body of weight after eating. One immediately feels light, the weight goes away, the mood rises.

Before you start a smoothie diet, you need to prepare properly. Stop eating fried, smoked, greasy, sweet, smaller baked goods. Let the stomach get used to limited portions. Drinking plenty of water between meals is necessary.

Clear Liquid Diet

One of the most difficult types of liquid diet is the clear one. What is allowed on a full clear liquid diet? Water, compote and fruit drinks, decoctions of herbs, strained broths and juices without porridge. You can drink a glass of liquid every hour, provided it is transparent.

The challenge for those on a clear liquid diet is to eat enough calories. This is only a temporary diet because it does not provide enough energy, protein, or nutrients. Therefore, a clear fluid diet should not be followed for more than 5 days unless your doctor tells you otherwise.

Your doctor will gradually relieve you from a diet with clean liquids back to whole foods. Light and fresh foods are most often added. This is followed by a transition to soft foods that require chewing and then back to eating fiber ones. This process should be monitored by your doctor or nutritionist.

Detoxifying Liquid Diet

The juice detox diet is among the options which are popular today. As a rule, it lasts from 3 to 7 days, during which only freshly squeezed juices are consumed, diluted with water in a ratio of 1: 1. Between meals, it is recommended to drink clean water – at least 1.5 liters per day.

Remember that the volume of one serving of diluted fresh juice should not exceed 250-300 ml, thus obtaining about 3.5-4 liters of fluid per day. Everything except sugar and alcohol is possible, the main thing is that the food should be liquid or in the form of porridge.

It is important to remember that one should get in and out of the diet gradually, reducing the number of solid foods, and switching to healthier foods. Read more: Find Out the 25 Most Weight Loss Friendly Foods on the Planet

Side Effects of Liquid Diets

It doesn’t matter if you are following a juice detox or a liquid diet that promises to help you drop 15 pounds fast. You are essentially starving your system and denying it the solid food it needs to survive. With a juice diet you risk overloading your body with sugar and carbs while forcing it to burn your muscle mass for energy. There is no denying that you will lose weight fast if you subsist on juice alone, but you risk nutritional deficiencies, quick muscle loss, loss of energy, and nausea.

You should also keep in mind that even medically monitored very low-calorie liquid diets can have serious consequences. Users may develop abdominal discomfort, bad breath, dehydration, and headaches, severe fatigue, liver inflammation, and kidney stones.

Frequently Asked Questions

Can you lose weight on a liquid diet?

The liquid diet is not a typical weight loss diet, but a complete program for cleansing the body and eliminating the cause of overweight. But although it was created for medical purposes, it also successfully copes with extra pounds.

The concept of a liquid detox diet is based on fluid intake once every two hours. In this way, the accumulated toxins in the body are reduced, say the followers of the liquid diet. Weight loss will be achieved by the intake of drinks, including water, home-made soups, fruit and vegetable juices.

When a person is cleansed of toxins, his body begins to function much better and his metabolism speeds up. These changes favor weight loss processes and allow people to safely lose about 10 kg in 21 days.

Can you lose weight on a liquid diet?

What can you eat on a liquid diet?

When you do a liquid diet you should drink a certain fluid on every two hours, so at the end of the day the balance is:

  • 1200-1500 ml of test water,
  • 900-1200 ml of herbal tea,
  • 400 ml of vegetable soup,
  • 900 ml of fruit and vegetable juices.

Thus formulated, a liquid diet provides only 1000 calories and about 2 grams of protein per day depending on the preferred fluids. Apart from fruits, vegetables, and a lot of fluids, the diet includes almost nothing else. Allowed foods are garlic, legumes, carrots, cucumbers, celery, lettuce, cabbage, potatoes, beets, zucchini, more green vegetables, tomatoes, and cabbage.

How much weight can you lose on a liquid diet for 3 days?

A three-day diet is convenient and although it is low in calories (about 700 calories a day), it is relatively easy to tolerate, thanks to the balanced ingredients. You will lose 3 to 5 kilograms in three days.

However, this liquid diet is especially suitable for cases where we need to lose only a few pounds. After such fast diets, very often the lost weight returns quickly. Therefore, after the end of the diet, it is good to switch to a moderately healthy diet without deprivation or hunger.

How long can you live on a liquid diet?

Rule #1 for hunger is, “If you feel hungry, drink water, you may be thirsty.” But when daily calorie restrictions cause discomfort, dizziness, helplessness, and an unbearable feeling of hunger, we think about how much we can endure without food.

A perfectly healthy person can live approximately 45 to 65 days without food in any form, as long as he has an inexhaustible source of hydration for the body. The time in which you can survive without serious symptoms and complications in your health is about 30 to 35 days. After this approximate period, you may experience symptoms such as rash, diarrhea, and, of course, significant weight loss. The body begins to eat itself, starting with adipose tissue (fat).

The liquid diet is an option for weight loss that allows you to get rid of the impressive excess weight in the shortest possible time (from 3 to 10 days). The longest period of the liquid diet is 21 days. Never do it for more days. This can lead to many complications.

How long can you live on a liquid diet?

Is bone broth a clear liquid

Bone broth is a flavored liquid prepared by boiling bones along with aromatic vegetables such as carrots, celery, and onions. The main ingredient in this type of broth is the bones and the goal is to extract collagen from them by boiling them over low heat. It is the connective protein of connective tissue and cartilage that is broken down into gelatin.

A cure for everything in traditional households, bone broth builds healthy bones and teeth, helps sore throats, heals the sick, restores vitality to love life. However, due to the presence of solid particles and a lot of protein, it is not clear liquid and is not allowed on liquid diets for weight loss.


As mentioned above, the basic rule of a liquid diet for weight loss is to eat only liquid food. It is necessary to replace the usual solid food with various decoctions, broths, and juices. As a result, only the organs of the urinary system and liver work. The digestive organs at this time rest, which leads to a gradual narrowing of the esophagus.

According to reviews of the liquid diet, the feeling of fullness of the stomach after leaving it comes much earlier. This in turn prevents the recovery of extra pounds. The usefulness of the diet and its calorie content does not depend on the type of food consumed. For example, the energy value of a cup of apple compote is equal to the energy value of 200 grams of mashed potatoes.

It is worth noting that following a liquid diet should not be longer than the specified period, otherwise the digestive system may “forget” how to process solid foods. In their reviews of the liquid diet, experts draw attention to the fact that in addition to excess weight, the body gets rid of various toxins and metabolic products. Our advice for the liquid diet? Do it, but learn how to do it the right way!