Fasting Guide

Everything you need to know about a break for body and mind.

Millions of people worldwide fast annually for religious or health reasons. Many fasters use the traditional fasting period to temporarily abstain from everyday vices, unhealthy foods, or environmentally harmful things. This can help not only to do something good for the body or the environment but also to sharpen awareness in terms of one's own mindfulness.

What are the benefits of fasting?

  • Our everyday lives can sometimes be quite exhausting. Stress at work, family appointments, household chores that need to be done. Amidst all the hustle and bustle, many of us forget to give our bodies what they truly need. Yet, we know very well: an unbalanced and unhealthy lifestyle can negatively impact many areas of life. Juice fasting is just the right thing for you if you are looking for new inner balance.

  • Fasting has long been deeply rooted in many cultures worldwide. When done correctly, it can positively change one's health as well as one's physical and mental balance. In Germany, the concept is primarily known as 'Heilfasten' (therapeutic fasting).

  • What forms of fasting are there?

    Unlike classic fasting, juice fasting does not completely forgo food; instead, the body is supplied with nutrients and phytochemicals through cold-pressed juices. Juices also play a role in so-called carbohydrate-modified fasting – though primarily on the relief and refeeding days.

  • Fasting boosts your metabolism

    When the body does not have to digest, important cell cleaning processes (autophagy) can function better. Fasting thus promotes the disposal of waste products by the body. This process is also part of the immune defence (xenophagy).

Information on traditional therapeutic fasting (also known as Buchinger fasting), as well as a scientific classification, can be found, among other places, at the German Nutrition Society.

  • "A cleanse can be an impulse for lifestyle changes and an improvement in eating habits."

    German Nutrition Society

Scientific Studies on Fasting

» Scientists (Xie et al. 2017) found that intermittent fasting can reduce the risk of chronic diseases, positively influence brain function, and have life-extending effects.

» A meta-study (Richter 2017) concludes that intermittent fasting leads to long-term weight loss.

» Another meta-study (Mattson et al. 2017), however, concludes that no clinical evidence for the effect of intermittent fasting has yet been found.

» In one of the clinical studies (Horne et al. 2015), evidence was found that intermittent fasting has positive health effects compared to continuous energy restriction. https://ajcn.nutrition.org/article/S0002-9165(23)12517-2/fulltext

» In another scientific study (Varady 2011), intermittent fasting can perform well compared to a continuously energy-reduced diet.

» The results of a randomized clinical study (Trepanowski et al. 2017) of 100 obese and metabolically healthy adults (mean BMI 34) show that daily energy restriction (-25% of energy requirements) compared to alternate-day fasting (fasting day: 25% of energy requirements, eating day: 125%) leads to a higher dropout rate.

  • “Fasting at home is a wonderful way to feel comfortable in your own body again and to regain new strength.”

    Katya, I·DO intermittent fasting coach and nutrition coach

Fasting Facts

  • 1. Conventional Medicine vs. Naturopathy

    While conventional medicine mainly uses therapeutic fasting to treat obesity (excess weight), Otto Buchinger – himself a physician – popularized traditional therapeutic fasting. Naturopathy sees far more therapeutic sense in abstaining.

  • 2. Therapeutic fasting has historical depth

    The practice of conscious renunciation is mentioned in the earliest historical records from antiquity. The traditional Christian month of fasting, or the Muslim Ramadan, are a result of these customs.

  • 3. Conscious abstinence can promote health

    In naturopathy, the period of abstinence primarily serves to detoxify and cleanse the body.
    The excretory organs are stimulated, and the body is thoroughly purified. Metabolism shifts during the fasting days. The mind also changes during a fasting cure: while the initial effort is great, after a few days, many people experience a feeling of lightness, freedom, euphoria, and inner peace.

  • 4. Fasting Requires Concentration

    Those who want to feel good should prepare properly. There are indeed all sorts of side effects that can occur. If you want to be on the safe side, you should consult a doctor beforehand.

  • 5. You can lose weight with fasting, but you don't have to!

    The body's fat reserves are only burned after a few days.
    Beware of the yo-yo effect, however. A fasting cure is the ideal start to changing one's diet. Only those who permanently eat a healthy and balanced diet should expect results.

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A. Lose Weight with Fasting

Fasting can lead to weight loss. For many, however, this is not the actual goal of a fasting cure. The fasting period is meant to give your body a break and restart your metabolism. Weight loss is often a side effect of the fasting period.

However, beware of the yo-yo effect. A fasting cure is the ideal start to changing your diet. Only those who permanently eat a healthy and balanced diet should expect anything from it.

B. Buchinger Fasting

Therapeutic fasting according to the Buchinger method is a holistic fasting concept and one of the most well-known methods. For five days or more, participants consume only vegetable broth and diluted juices. Instead of a zero-calorie diet, therapeutic fasting consists of nutrient-rich liquids with a low caloric intake.

C. Christianity and Fasting

The Christian Lent is a period of abstinence lasting forty days, from Ash Wednesday to Easter. In the past, strict rules of abstinence were observed to reflect and re-center oneself. Nowadays, Christian fasting rules are less strict. Many people voluntarily choose to give up sweets or alcohol.

E: Duration of fasting / Optimal fasting duration

Basically, every fasting experience is divided into 3 phases: relief, fasting, and rebuilding. The optimal fasting duration should be adapted to personal needs. For example, a fasting period that is no less than six days and no more than 14 days is recommended. Longer fasting is only recommended with sufficient experience and an already good psychological and physical constitution. It is advisable to fast cyclically in shorter intervals rather than fasting for a very long time, as this allows the body to slowly increase its basal metabolic rate again.

E: Release Day

The relief days usher in the fast and prepare you physically and mentally for the fasting period. The relief days are essential because they help curb appetite and alleviate hunger. Fewer calories are provided, and the body begins to access fat reserves. This makes the start of the fasting period easier and allows the metabolism to prepare optimally for the upcoming days.

Q: Fasting for beginners

Fasting is something everyone should try at least once. Initially, it can be challenging, especially for beginners, but it's worth it. It's important to prepare well and know the basic rules. Beginners should not start with two weeks; seven days are already sufficient. If you like, you can take a break to fast twice a year. Fasting tip: Fasting together in a group motivates and promotes your perseverance.

E: Healthy Fasting

Fasting not only leads to weight loss but also significantly benefits one's health. A fasting period is intended to cleanse body and mind by interrupting food intake for a certain time, allowing the body's repair processes to occur. After approximately 20 hours without food, sugar reserves in the liver are depleted, fat stores are tapped, and cell cleansing is boosted.

H: Hildegard of Bingen Fasting Method

Fasting according to Hildegard of Bingen is characterized by being a very gentle form of fasting. The gentle method is intended to bring body and soul into harmony. This holistic fasting concept pursues physical purification through a detoxification cure and spiritual contemplation through inward concentration.

I: Intermittent fasting

Intermittent fasting, also known as interval fasting, describes less a specific form of fasting and more a particular eating rhythm. Compared to multi-day fasting programs, which are often carried out, for example, once a year for cleansing, intermittent fasting is more of a regular form of fasting that can be integrated into daily life long-term if desired. This involves abstaining from food for hours or even days. Intermittent fasting is distinguished based on the time windows in which food is eaten or not eaten.

VERY POPULAR: THE 16:8 INTERMITTENT METHOD

The 16:8 method is probably the most common form of intermittent fasting and is often considered the beginner's option. The number 16 represents the 16-hour window during which no calories are consumed. Food and drink are then allowed during the remaining 8 hours. With the 5:2 intermittent fasting method, on the other hand, one refrains from eating for 2 days a week, or consumes a maximum of 500 kcal, while eating normally on the other 5 days.

J: Yo-yo Effect with Fasting

The yo-yo effect refers to unwanted weight gain after a diet, often resulting in a final weight that is higher than the starting weight. It is the body's reaction to a poorly executed diet, especially when old habits are resumed afterwards. Properly conducted fasting is not a crash diet. Rather, it is about establishing a long-term healthy lifestyle that prevents the yo-yo effect. With a balanced diet and sufficient exercise, the yo-yo effect can be avoided during the recovery phase.

K: Fasting cure

A fasting cure is a consciously chosen period of fasting. You don't have to go to a spa clinic or an expensive hotel for this; you can fast comfortably from home. In your familiar surroundings, you can carry out the fasting phase exactly as you wish. However, you should fast under guidance so that you prepare yourself step by step.

L: Liver Fasting

Fasting is a cure for the entire body. The liver, in particular, welcomes this break. Unhealthy eating, alcohol consumption, and obesity put a lot of strain on the liver and can increase the risk of chronic diseases. A fasting cure relieves the liver, and liver values can normalize.

M: Fasting with broth

During therapeutic fasting, only liquid food is consumed. Depending on the fasting method, one of the fasting drinks is often a broth or a fasting soup. Warm vegetable broth is a good source of energy, as it warms you from the inside and also provides important vitamins and minerals.

EN: Fasting Side Effects

Fasting can contribute to great well-being. However, the fasting period is also very individual, and each body reacts differently to the process. Possible symptoms such as headaches, fatigue, dizziness, or weakness can occur, but do not have to. However, you can remedy these with simple tricks. For example, an alkaline bath helps with better sleep, peppermint oil against headaches, and dry brushing against circulatory problems.

O: Fasting Without Muscle Loss

There are many myths surrounding the topic of muscle loss during fasting. It is true that some muscle loss can occur during therapeutic fasting. The exact extent depends on the duration and phase of fasting. However, those who fast for only a few days and incorporate sufficient exercise into their daily routine without overexerting themselves do not have to worry seriously about muscle loss. Some studies even report an increase in muscle strength and endurance performance with adapted physical training.

P: Fasting Program

Do you want to do something good for your body in the long term? Then a professional fasting experience with a plan is what you need. There are various programs for this. Because fasting is much more than simply not eating. For a healthy renunciation, you will find instructions that will accompany you to different extents during your fasting program.

R: Fasting Retreat

Fasting experiences for body and mind are often offered in the form of fasting retreats. A retreat in general is primarily a phase of relaxation, rest, and withdrawal from everyday life. Fasting retreats can be conducted either in special hotels or facilities or conveniently from home. You decide where you want to enjoy your retreat for this fasting experience.

T: Juice cleanse

With a juice cleanse, you give your body a break by abstaining from solid food for a certain number of days. Meals are replaced with fruit and vegetable juices. Since the juices are your only micronutrient intake, you should prioritize raw food quality to ensure you absorb all essential nutrients. A juice cleanse can help you recharge your energy, break bad habits, and boost your well-being.

E: Fasting tea

Since you consciously abstain from solid food during fasting, it is all the more important to drink enough. Tea is a suitable companion and the ideal fluid intake to quench your thirst. Ideally, you choose exquisite herbal blends that support you during your fast by having a soothing effect on your stomach and intestines. Fasting tea provides you with valuable minerals and vitamins and can bring a little aromatic variety to your fasting period.

U: Fasting Holiday

For a fasting experience, you can, but don't have to, take a vacation. There are fasting programs specifically designed to be carried out during everyday life. Those who choose to completely withdraw from their usual daily routine can also book a fasting retreat away from home.

W: What's allowed when fasting?

What exactly is allowed during fasting depends heavily on the fasting method. With all fasting methods, drinking water and unsweetened teas is permitted. Fasting concepts that significantly reduce calorie intake and rely on liquid nutrition prioritize juices and broths. Other methods allow for further food intake in the form of fruit, steamed vegetables, rice, and potatoes. However, with common forms of fasting, alcohol and cigarettes should be avoided.

Y: Yoga

Yoga is a valuable complement to fasting. This is because, during both fasting and yoga, we focus on our inner selves and dedicate ourselves to our body and mind. With specific yoga exercises and the right diet, or conscious abstention, you can wonderfully support the fasting process. Yoga is a gentle form of movement that can be integrated during the fasting experience.

E: To fast at home

You can fast anywhere you feel comfortable and safe. The familiar surroundings of your own home therefore offer many advantages. If you fast at home, you should, especially as a beginner, fast under guidance. With a little preparation or the right provisions, you will easily master fasting at home. Decide which method is right for you, how long you want to fast, and choose a period without important appointments.

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