Medicinal plants

Black radish - effect and application

Whoever looks at him will surely not be attracted to his appearance. Black, clumsy, round and rough Black radish. Not a feast for the eyes, but a food that can develop its effects even when raw.

The black radish, in the technical language Raphanus sativus niger, belongs to the genus of cruciferous vegetables, like mustard, horseradish and radish. It is an ancient crop and was already known in ancient Rome and Greece as a food and as a remedy. It was eaten raw with salt and vinegar and a juice prepared from it as a cough medicine. Hildegard von Bingen describes it as cleaning and expectorant.


The black radish contains various vitamins, minerals and above all mustard oil glycosides.

Medicinal effects - digestive tract

The digestive tract benefits from eating the black radish. The production of digestive juices is stimulated, the intestinal activity is activated and the bile juice production is stimulated. Fat digestion is supported. The fats are broken down into their individual parts, thus reducing bloating and feeling of fullness. The black radish also has an antispasmodic effect.

Medicinal effects - respiratory tract

The mustard oil glycosides contained have a positive effect on the respiratory tract. They kill the bacteria and help with persistent coughing. For this purpose, a radish juice is made from black radish as an effective cough suppressant.

These vegetables are in season in October and this is exactly the time when the cold wave begins. Similar to carrots, the radish can be stored for a few months. So he is always ready for cough or hoarseness. Get the black ball and let's go:

  • Cut the radish on top and hollow it out (about a third of the pulp).
  • Then, with a long needle, pierce the bottom of the radish from top to bottom - about five times.
  • The radish is then placed on a container to collect the juice.
  • Five tablespoons of honey are poured into the hollowed-out opening and the cough syrup can now begin to be produced.
  • After a few hours, the first liquid has formed and the cough medicine is ready.
  • If there is no juice left, some pulp is hollowed out again and the radish is filled with honey again. The whole thing starts over.
  • An adult can consume a teaspoon a few times a day - children according to their age, less.

If you don't like honey, you can also use sugar candy for the cough syrup.

Use in homeopathy

The black radish is also used in homeopathy. Here it is used as Raphanus sativus niger in potentized form, such as in D6. Black radish is prescribed for indigestion such as frequent diarrhea, flatulence, but also for constipation, upset stomach, constant feeling of fullness and irritable bowel syndrome. This remedy is also used for kidney, bladder and gall stones. If the intestinal flora is disturbed, the homeopathically prepared black radish can support intestinal rehabilitation. For migraines that have a hepatic cause, Raphanus sativus is worth trying.

Basic vegetables

Basic vegetables have an anti-inflammatory effect, for example for rheumatism. Furthermore, basic food helps to neutralize and remove excess acids, toxins and slags in the body. The base suppliers include, among others, potatoes, bananas, spinach, dandelion-dried figs and also black radish, as well as all other types of radish. The black representative is certainly not one of the favorite vegetables, precisely because of its appearance, but it is definitely recommended.

The black radish contains a large amount of minerals and vitamins. The most important thing, however, is the so-called mustard oil, which the radish has in large quantities. As already mentioned, this has a positive effect on the gastrointestinal tract, stimulates bile juice production and is antibacterial in the respiratory tract. Mustard oils, when consumed regularly, are also considered to be anti-cancer. These isothiocyanates (mustard oils) are also able to detoxify the body, which is very important for many people today.
If you want to eat the black radish raw, you should salt it beforehand. This takes away the sharpness. Otherwise, it can also be eaten warm in a potato soup. Here is the recipe for a black radish and potato soup for four:

  • 500 grams of peeled, diced potatoes,
  • 300 grams of black radish, peeled and cut into small pieces,
  • a finely chopped clove of garlic,
  • a chopped onion,
  • Olive oil,
  • about a liter of vegetable broth,
  • 200 milliliters of soy cream or almond cream,
  • some salt and pepper to taste.

Heat the olive oil and fry the onions. Then add the garlic and potatoes and pour the vegetable stock on top. When the potatoes are cooked soft, add the black radish cubes and the cream. The whole thing is cooked for a short while, pureed and seasoned with the spices. All in all, this is a base-rich and delicious lunch and / or dinner.

Capsules and juice

Black radish is available in capsule form but also as plant juice. Both the juice and the capsules relieve mild digestive problems, have a detoxifying effect, stimulate fat digestion and are recommended for general detoxification. Both are best used in coursework. If there are gallstones, you should not take them. Here the homeopathic form should be used. But even with this, it is better not to practice self-medication, but to consult a doctor or alternative practitioner beforehand.

Detoxification cure

A detoxification cure with fresh plant juices is a simple but effective way to detoxify the body. If possible, this cure should be carried out for four weeks. In the first week it is the turn of the dandelion. This is an all-rounder. It cleanses the blood and detoxifies the liver, bile and kidneys. After a week of taking the milk thistle. This is an absolute liver plant. It has a healing and regenerating effect on the liver. In the third week it is the turn of the black radish and finally the nettle. This has a positive effect on the kidneys and bladder.

Each of these plant juices, which can be purchased in health food stores, is taken one tablespoon full of pure or with a little water three times a day before meals. During the entire period, care should be taken to maintain a healthy, balanced basic diet and drink enough still water. If you feel unwell or intolerant, the intake will of course be stopped. This is a very gentle treatment to cleanse the body. It is best carried out in spring or autumn. Or just in between to do something good for yourself. (sw)

Author and source information

This text corresponds to the specifications of the medical literature, medical guidelines and current studies and has been checked by medical doctors.

Susanne Waschke, Barbara Schindewolf-Lensch


  • Fetzner, Angela: My Favorite Home Remedies: Healing with the Power of Nature, Books on Demand, 2018
  • Prentner, Angelika: Medicinal plants of traditional European medicine: effects and uses according to frequent indications, Springer, 2017
  • Evans, Malkanthi et al .: "An open label pilot study to evaluate the efficacy of Spanish black radish on the induction of phase I and phase II enzymes in healthy male subjects", in: BMC Complementary and Alternative Medicine, Volume 14, 2014, NCBI
  • Hänsel, Rudolf; Sticher, Otto: Pharmacognosie - Phytopharmazie (Springer textbook), Springer, 2007
  • Wacker, Sabine: Eating basic made easy: the best diet after base fasting, TRIAS, 2009

Video: Radish Chips (January 2022).