Updated: October 2026
In short: With a Soup Cleanse, you replace your normal meals with soups, broth and drinks for 3 to 7 days. That is warmer and more filling than a pure Juice Cleanse. With the frank. Soup Cleanse, calories are around 800 to 955 kcal per day depending on the level, and the 3-day cleanse costs €99.75 in the Starter level. Plan 2 to 3 preparation and refeeding days.
Especially in autumn and winter, a Soup Cleanse is often more pleasant than a cold Juice Cleanse: you fast and still have something warm in your cup. Here's how it works, what it costs and who it suits.
What is a Soup Cleanse?
A Soup Cleanse, also called soup fasting, is a short-term fast in which soups replace solid food. Depending on the provider, juices, broth and tea are added. Calories are usually higher than with Buchinger therapeutic fasting, but lower than with your normal diet.
The frank. Soup Cleanse combines warming organic soups, Ginger Shots and cold-pressed juices. You can choose from Pomodoro Pronto, Brokkoli & The Gang and The Radiance.
How does a Soup Cleanse work?
Over the day you drink and eat six servings: juices, lemonade, almond drink and a soup of your choice, plus water, tea and optionally broth. The guide gives you a fixed plan.
| Level | Energy per fasting day | For whom |
|---|---|---|
| Starter | approx. 955 kcal | cleanse newcomers |
| Medium | approx. 886 kcal | bold beginners and those in the know |
| Pro | approx. 800 kcal | experienced fasters |
The figures come from the Soup Cleanse product page and vary depending on the soup chosen.
What does a Soup Cleanse cost?
| Duration | Price (Starter) | per day |
|---|---|---|
| 3 days | €99.75 | €33.25 |
| 5 days | €162.75 | €32.55 |
| 7 days | €227.50 | €32.50 |
The prices apply to the Starter level, as of October 2026; Medium and Pro are slightly higher. Shipping within Germany is free from €99. For comparison: if you cook yourself, you pay less, but you need shopping, time and planning.
What speaks for and against the Soup Cleanse?
In its favour are the warmth, the simple organisation and the higher fullness compared with a pure Juice Cleanse. Against it are the price, the fact that there's no cooking and chewing, and that a cleanse is no substitute for a permanently balanced diet.
The Verbraucherzentrale also makes clear that the cleansing effects promised for fasting cannot be demonstrated in the body. So see the Soup Cleanse as a time out for habits, not a treatment.
How do you prepare for a Soup Cleanse?
With 2 to 3 preparation days: less meat, sugar, alcohol and coffee, smaller portions and lots of water. That's what the Verbraucherzentrale recommends for fasting cleanses in general. For the cleanse itself, plan quiet days and allow yourself warmth, time and sleep.
- Cut back on coffee and alcohol beforehand
- Have enough tea and water ready (at least 2.5 litres calorie-free)
- Limit exercise to walks
- Plan refeeding days in advance, not straight to a restaurant
How does the Soup Cleanse differ from the Juice Cleanse?
| Feature | Soup Cleanse | Juice Cleanse |
|---|---|---|
| Temperature | warm (soup) and cold (juices) | cold |
| Energy per day | approx. 800 to 955 kcal | 650 to 845 kcal |
| Fullness | higher thanks to soup | lower |
| Typical season | autumn, winter | year-round, popular in spring |
Both are time outs, not therapies. If you can't decide between the two, the overview Types of Fasting helps. The cleanse shouldn't be done during pregnancy, breastfeeding or with eating disorders, nor without medical advice if you take medication.
Which soups are part of the frank. Soup Cleanse?
You choose one soup per day. According to the product page, the options are Pomodoro Pronto (tomato soup), Brokkoli & The Gang (potato and broccoli soup) and The Radiance (ginger carrot soup). The cleanse's calorie figure varies depending on the soup chosen.
The soups are also available as single boxes. If you want to try whether you like the soups first, you can order a box beforehand.
What does a day of the Soup Cleanse look like?
| Time | What you drink or eat |
|---|---|
| Morning | warm water or tea, juice |
| Mid-morning | Lemonade (cayenne and turmeric) |
| Midday | Soup of your choice, warm |
| Afternoon | Juice, tea |
| Evening | Almond drink with fruit, tea, optionally broth |
A Ginger Shot is added daily. The exact combination depends on the level. Drink water and tea between servings so you reach at least 2.5 litres of calorie-free fluid.
Who is the Soup Cleanse particularly suited to?
For anyone who wants to fast but doesn't want to give up something warm. The warm soup gives a feeling of fullness and makes the evening easier, especially when it's cold outside. People with jobs and little time to cook also manage well, because the servings are delivered ready.
It is less suitable for people with eating disorders, pregnant and breastfeeding women, children and teenagers, and people with conditions for which a doctor advises against fasting. If you take medication, talk to your doctor beforehand too.
How do you end the Soup Cleanse?
With 2 to 3 refeeding days: on the first day light food such as soup or steamed vegetables, then slowly oats, potatoes, wholemeal bread. Fatty food and alcohol last. The details are in the article Breaking a Fast.
Matching picks from frank.
The frank. Soup Cleanse is available for 3, 5 or 7 days, for example as the 3-Day Soup Cleanse. You choose the level and your soup, and we deliver the juices, shots and guide.
You might also like
- Types of Fasting: Which One Is Right for Me?
- What Is the Optimal Fasting Duration?
- Juice Cleanse Guide: How Do I Fast Properly?
Frequently asked questions about Soup Cleanses
Can I lose weight with the Soup Cleanse?
In the short term, weight often drops, and part of it is water. For lasting results, what counts is what you eat afterwards. Use the cleanse as a starting point for a habit you can keep, such as more vegetables or less sugar in the evening.
How long does a Soup Cleanse last?
3, 5 or 7 days are usual. As a beginner, you start with 3 days and then decide whether you'd like to try a longer cleanse.
Can I drink coffee during the Soup Cleanse?
Cut back on coffee before the cleanse so you don't get headaches. During the cleanse, water and herbal tea are the better choice, also because they help you reach the recommended 2.5 litres of calorie-free drinks.
Is the Soup Cleanse suitable for beginners?
Yes, the Starter level has the highest energy amount and is meant for beginners.
Can I eat the soups without a cleanse?
Yes, you can also use the soups individually as a quick, warm meal, for example at the office or on an evening when you have no time to cook.
Note: This article is for general information and is not a substitute for medical or therapeutic advice. If you have complaints, pre-existing conditions, are pregnant or take medication, please talk to your doctor first.
