Black spanish round radish

Black Radish Extract: Benefits, Side Effects & Dosage

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What is Black Radish Extract?

Black radish extract comes from the root of the black radish plant. The black radish, or the Black Spanish radish, is a member of the Cruciferae family and has been in use for centuries, both as a medicine and as food. It is scientifically known as Raphanus sativus L. Var. niger and may have originated from the eastern Mediterranean region (x). It is referred to as the black radish due to its dark purple or sometimes dark exterior, though it does come with a white inner flesh.

Since ancient times, black radish has been used by the Chinese, Indians and Europeans to treat different illnesses. Other regions have started growing the black radish, and its popularity has increased in recent years as a result of its impressive nutritional profile and fantastic health benefits.

The black radish is slightly larger than the traditional radish and more bitter and pungent in flavor. This is as a result of the chemical compounds such as glucosinate, Isothiocycinate and myrosinase produced by the plant. Its not-so-appetizing flavor is offset by the tons of health benefits it provides. The black radish has earned the moniker ‘the black magic’ due to its antibacterial and antimicrobial content, as well as being a powerhouse of nutrients and antioxidants. Today, the black radish is mostly used to make herbal supplements.

Nutritional Information of Black Radish Extract

Black radish extract offers various health benefits thanks to the wide array of compounds present within. Those compounds are:

  • Calcium
  • Copper
  • Dietary fiber
  • Iron
  • Magnesium
  • Phosphorus
  • Protein
  • Selenium
  • Sodium
  • Sugar
  • Vitamin A
  • B-Vitamins
  • Vitamin C

There are also low levels of anthocyanins, antioxidants, hormones and enzymes within the black radish.

Black Radish Extract Benefits

Improves Skin Health

Having bright and healthy looking skin starts from having a clean internal system. Loaded with an abundance of zinc, phosphorus, calcium, vitamin K, vitamin C and B-complex vitamins, black radish extract makes it effective for treating skin disorders (x). These nutrients work as an effective blood purifier, as it eliminates toxins and waste material from our body to improve our overall skin health.

Also, its antioxidant content — especially the vitamin C — helps combat against free radicals and prevent its damaging effect on the skin (x, x). Vitamin C is essential in combating many skin issues such as acne and scurvy, and it is effective in slowing down the aging process of the skin. These antioxidants all work together to resist the oxidization within our body to promote more youthful skin.

A common skin problem that can be cured by the consumption of black radish extract is angular cheilitis. Angular cheilitis is characterized by red, inflamed lesions at the side of the lips, and it is caused by bacterial or fungal infection, skin dryness or lack of essential body nutrients.

Boosts Liver Function

Our liver processes everything we eat and drink. It is a vital organ of the body with several functions which include protein production, bile secretion, drug metabolism and chemical detoxification. However, for several reasons, the liver may get damaged. For example, if you consume too much alcohol or you take drugs often, your liver could face the brunt. If the detoxifying power of the liver reduces, it could lead to a host of health conditions.

The black radish supplement being rich in several vitamins (vitamin B1, other B-vitamins, vitamin C) and minerals (magnesium, calcium) helps to promote the flow of bile and aids in liver drainage. History has shown that black radish extract has been useful for hepatic drainage (liver), and has also been helpful for hepatic headaches (x). In fact, it has been used for years in India as a liver tonic. Black radish contains a high sulfur compound content, which is quite vital for phase 2 liver detoxification.

A study in the Journal of Agricultural and Food Chemistry revealed that an extract derived from the black radish plant effectively induced detoxification enzymes in a tested liver (x).

An important antioxidant our body needs that helps to prevent the build-up of toxins is glutathione. However, our body’s glutathione levels drop as we age as a result of an onslaught of free radicals. Plants like black radish have been found to increase their levels (x). Glutathione helps to promote enzymatic activity in the liver to prevent the build-up of toxins.

Acts as Respiratory Tonic

Black radish extract has a tonic effect on the respiratory system and has been used to reduce spasmodic conditions like whooping cough (x). Also, the vitamin C content in black radish due to its immune boosting properties can help protect against cold and flu. It can help heal infections within the respiratory system and can also clear mucus effectively to treat cough.

Can Treat Hyperthyroidism

Hyperthyroidism (also called Grave’s Disease) is a condition where thyroid organs secrete excess thyroid hormones. You have to treat this disease promptly, as it may cause health problems such as metabolism disorder, especially in women.

For centuries, doctors have used black radish to cure thyroid problems. Raphanin, the major sulfur compound of black radish, can help regulate the secretion of calcitonin and tyrosine hormones by our thyroid glands (x).

Maintains Cholesterol Levels

Do you have high cholesterol? Black radish supplements can help keep your cholesterol levels in the recommended range, which can then mitigate the dangers related to atherosclerosis, stroke and heart failure.

Black radish supplements participate actively in fat circulation and metabolism in the body. Since it boosts the functioning of the liver, the liver can efficiently aid the absorption of cholesterol before it gets deposited in the arterial wall and adipose tissues. It then filters the impurities and further processes the fat to eliminate fat accumulation. This process helps reduce cholesterol formation and indirectly cut down on the risk of heart attack (x).

The Journal of Biomedicine and Biotechnology published a study that sought to determine the effects of juice squeezed from black radish on serum lipids and cholesterol gallstones on mice fed on a lithogenic diet. After undergoing treatment with black radish for six days, the study showed the mice had decreased cholesterol gallstones, as well as a reduced level of cholesterol and triglycerides. The study concluded black radish could be effective in treating cholesterol gallstones and reducing blood lipids (x).

Black radish extract can also help in treating gallstones caused by cholesterol. Black radish juice extract contains antioxidants that help manage lipid metabolism and can help cut down on the risk of hyperlipidemia (x).


Black radish extract contains isothiocyanates, which has an important effect on the genetics pathways of cancerous cells and can lead to cell death, thereby preventing cancerous cells from reproducing (x).

Black radish extract being a good source of antioxidants like carotenoids makes it an amazing anti-cancerous remedy. These antioxidants help prevent the formation of free radicals, thereby keeping cell division and functioning under control, which will thus decrease the risk of cancer.

Supplements are also a great source of glucosinolates, a naturally occurring compound in cruciferous vegetables, which are broken down by our body into chemicals that can help prevent cancer. Black radish extract also has sulforaphane and anthocyanins, powerful compounds that have been beneficial in combating cancer of the mouth, prostate, stomach and kidney. Moreover, they can help neutralize free radicals and decrease oxidative stress, hence reducing cancer risk (x). However, further research is still necessary to understand the extent to which black radish can help.


If synthetically filled detoxifiers has been your go-to, then it is time to try out a more natural alternative, as black radish extract can help remove toxins found in the bloodstream and bone marrow.

The presence of toxins in the body can hinder the normal functioning of our red blood cells and other body organs. If you’re unable to purify the toxic blood in your system, it can destroy the friendly gut bacteria, impair RBC function and affect the proper functioning of your organs.

A 2012 study on mice revealed that black radish helped increase the activity of detoxification enzymes and also cleansed the blood of toxic materials. Black radish works alongside the lymphatic system and the liver to boost the activity of detoxification enzymes. Also, its high content of glucosinolate may be a detoxification enhancer (x).

Fortifies Immune System

A proper functioning and insusceptible immune system will help guard your body against pathogens, harmful cells and harmful micro-organisms. Since vitamin C and magnesium are two components of black radish, it is great for reinforcing your vulnerability. The black radish also has antimicrobial effects on flu, sore throat and the stimulation of mucous membrane. It can even help boost production of white blood cells, the body’s first line of defense, against toxins and pathogens (x).

Improves Digestion

Indigestion comes with a lot of discomforts. Various internal and external variables could contribute to constipation and nausea.

Since black radish supplements improve the functioning of the liver and gallbladder, it also helps to improve digestion. How does this occur?

Well, the liver and gallbladder both play a role in digestion. The liver is responsible for bile production and the gallbladder stores bile and increases its potency. When you eat fatty food, the gallbladder releases this bitter fluid to improve the digestion of fat and protein. As a result, the use of black radish can serve as a natural remedy for an impaired digestive system.

Black radish contains a good amount of dietary fiber which helps to reduce constipation and maintain healthy bowel movement. In fact, black radish juice has been used in folk medicine to enhance the activity of digestive juices like bile, hereby improving digestion (x). Also, black radish being a detoxification agent clears toxic material from the stomach, which will then help maintain the PH level of the stomach.

Improves Cognitive Health

Maintaining good mental health depends on the proper electrochemical balance of the brain. Black radish can help improve brain power, nervous system functioning and cognitive function (x). This is a result of its magnesium and potassium content, which are vital minerals for balancing electrolytes in the brain.

content, which are vital minerals for balancing electrolytes in the brain.

Magnesium and potassium can also improve mental concentration as they are memory chargers. Hence black radish can function as a cerebellum supplement as a result of these essential minerals.

Black Radish Side Effects

As great as black radish extract is as a natural remedy for various conditions, some radish side effects may occur from its consumption. Here are some of them:

Anti-thyroid or Goitrogenic

All members of the cabbage family (black radish inclusive) can cause goiter because of their glucosinolate content. Goiter as a radish side effect occurs when the thyroid glands become enlarged as a result of iodine deficiency. When excess glucosinolate is consumed, it could disrupt the production and secretion of essential thyroid hormones. In the absence of these hormones, our body’s ability to burn and use energy is at risk (x).


Though black radish can fight off cancer, excess consumption can actually lead to cancer (x). When nitrite (a by-product of glucosinolate) is combined with amine forming N-nitroso compound, it could result in cancer. Furthermore, nitrates react with hemoglobin to form methemoglobin. A high blood level of methemoglobin can lead to cyanosis, which may cause bluish lips, cheeks and nails.

Also, take note that patients with gastritis, ulcers and thyroid problems shouldn’t use it. It is not recommended for people with gallbladder stones or obstruction and severe kidney or liver problems.

Black Radish Dosage

As a dietary supplement, take 1000 mg grams (heavy 1/3 tsp) daily, or as directed by a physician.

Why Take Black Radish Extract?

Black radish extract is an outstanding supplement which provides even more benefits during winter. If you suffer from recurrent symptoms of cough and flu, you should add black radish extract to your diet. Its respiratory and pulmonary health benefits are attributed to the presence of vitamin C, which fights free radicals.

Apart from our respiratory health, the various nutritious properties contained in the black radish extract are quite beneficial in alleviating many health issues. You can enjoy these health benefits of radish in the long run when you make the black radish supplements a part of your regimen.

The Bottom Line

The black radish extract isn’t getting as much attention as it deserves as a natural remedy for various health conditions. If you’re looking for a natural remedy that can boost your health, then the black radish supplement may be right for you. It offers an array of health benefits, from improving skin health and boosting the function of the liver to helping with cold and cough. It is also said to be an anti-cancerous and detoxification agent while having the ability to treat hyperthyroidism and aid weight loss.

By: Kusimo Temitayo

Your Health is Your Wealth! Guard it with Knowledge, Understanding, and Wisdom!

  • Contains a high concentration of glucosinolate metabolites which induce the body’s detoxification enzymes
  • Supports healthy liver and gallbladder function
  • Encourages healthy digestion. It supports gastrointestinal tract function, promoting the body’s detoxification mechanisms by cleansing the colon through excretion of toxic materials. Spanish Black Radish constituents include isothiocyanates, ascorbic acid, carotenoids, raphanin, and sulfur, which has an antibiotic action. Another physiological mechanism activates relaxation of the GI tract musculature specifically the ileocecal, pyloric and anal sphincters, supporting the action of the GI sphincters and preventing spasticity
  • Supports the body’s normal toxin-elimination function. During phase two of detoxification, the liver converts toxic substances into less toxic, water-soluble substances that are easier for the body to excrete. If, however, phase two enzymes cannot keep pace with metabolism, toxins can accumulate. In one model of liver detoxification, exposure to aqueous extracts from Spanish Black Radish increased the activity of glutathione, quinone, and thioredoxin, three enzymes involved in liver detoxification.
  • Spanish Black Radish provides not only sulfur in its organic form, but also its synergistic vitamin and mineral cofactors, including folate, vitamins A and C, potassium, sodium, calcium and phosphorus. This natural complex is essential in effectively addressing degenerative connective tissue conditions, such as arthritis. As an adjunctive support for Zymex in dealing with yeast infections, such as candida albicans, Spanish Black Radish facilitates the elimination of toxic by-products, precluding bowel toxicity.

Black Spanish Radish: Health Benefits of its Roots, Leaves and Juice

Black Spanish radish (Latin: Raphanus sativus L. var. niger) has been used for centuries both as food and as medicine. When used for culinary purposes, the dull black skin is typically removed, and the white inner flesh is steamed, sautéed, braised, or stir-fried. Black radish can also be eaten raw, in which case it is usually grated or sliced, and added to salads or eaten as a healthy snack. When used for its health benefits, black Spanish radish can also be juiced or ingested in supplemental form. Also the leaves of young Raphanus sativus L. var. niger can be consumed, whether for culinary or health purposes.

The black Spanish radish can be either round or elongated in shape. The round-shaped variety is sometimes called “Noir Gros de Paris”, while the elongated variety may be called “Black Spanish Long” or “Black Mooli”. Regardless of which variety you go for, you will be in for a nutritional treat. Rich in vitamin C, glucoraphasatin, and a bunch of other health-protecting compounds, this earthy and pungent root vegetable might just be the next healthy food to earn a “superfood” status. Here’s the full scoop on the beneficial properties of the black radish:

Food for a Healthy Liver, Gallbladder, and Digestive System

In China and Europe, black radish root has been used in folk medicine for hundreds of years as a gallbladder tonic and as a natural remedy for impaired bile function and digestive problems. In India, black radish – or black mooli as it is sometimes called there – is a popular liver tonic.

Both the liver and gallbladder are involved in digestion, the former being responsible for the production of bile and the latter storing this bitter fluid and increasing its potency. When fatty food enters your small intestine, the gallbladder releases bile to improve the digestion of fats (and protein).

As a result of its longstanding and widespread use as a natural remedy for impaired digestive organs, black Spanish radish has getting a lot of attention from scientists focused on modern medicine and nutritional studies. A 2012 study published in the Journal of Biomedicine and Biotechnology investigated the effects of juice squeezed from black radish root on cholesterol gallstones and serum lipids on mice fed a lithogenic diet (i.e. a diet that promotes formation of gallstones and increases cholesterol and triglycerides levels). After treatment with black radish root juice for 6 days, the mice had significantly fewer cholesterol gallstones, and their cholesterol and triglycerides levels had dropped as well. In addition, there was an increased in HDL cholesterol (the “good cholesterol”) levels.

Interestingly, however, people with existing gallstones are often advised to avoid eating radish in large amounts, perhaps because it could cause the gallstones exit the gallbladder and then get stuck inside the common bile duct.

Another study focused on the potential liver-detoxifying properties of an extract derived from the taproot of the black radish plant. The researchers found that the black radish extract effectively induced detoxification enzymes in the tested liver cancer cell line. These anti-cancer effects were largely attributed to 4-methylthio-3-butenyl isothiocyanate (MIBITC), an isothiocyanate metabolite of glucoraphasatin. This study appeared in the August 2007 edition of the Journal of Agricultural and Food Chemistry.

Important notice: If you have gallbladder stones or suffer from severe kidney or liver problems, don’t use black radish medicinally (i.e. in large amounts or in the form of concentrated supplements) before consulting a qualified health care professional. Also pregnant and breastfeeding women should avoid using more than usual food amounts in order to stay on the safe side.

Radish Leaves Are Edible and They Provide Health Benefits, Too

In 2009, a team of researchers published a study in the Journal of Functional Foods which showed that not only the root portion of Spanish black radish can induce detoxification enzyme expression in the HepG2 human liver carcinoma cell line, but also the leaves have similar liver-detoxifying effects. In addition, the researchers found that the radish leaves had significantly greater antioxidant potential than the roots (regardless of whether the antioxidant capacity was measured by the FRAP or the ORAC method). So next time you buy a bunch of black radishes with young, intact leaves still attached, don’t toss them on the compost pile. Instead, turn them into a delicious side dish by sautéing them on a frying pan.

Black Radish for the Prevention and Treatment of the Common Cold

In terms of flavor, black radish is much stronger and more pungent than its white counterpart. But that hot spiciness is just one reason why black radish makes an ideal food for cold winter days. Anecdotal evidence suggests that pungent foods, such as black Spanish radish, can help prevent and ward off colds and flu by stimulating mucous membranes and clearing congestion.

But the pungent flavor of black Spanish radish may not be the only beneficial property this unsung superfood has when it comes to flu prevention; the vitamin C in black radish may also provide some protection against colds and flu due to its immune-boosting properties.

Where to Find Black Spanish Radish

Despite all the knowledge about the wonderful health benefits of the black Spanish radish, this earthy root vegetable is still relatively difficult to find in regular grocery stores. You may be able to find it in health food oriented grocery stores such as Whole Foods Market, however. Also farmers’ markets are a good place to start a search for fresh black radishes. When looking for black Spanish radish, keep in mind that it also goes by other names, including “Black Spanish Long” (the long variety), “Noir Gros de Paris” (the round variety), Nero Tondo, and black mooli.

If you have no luck in finding fresh black radishes in your area, you can always grow your own if you have a garden. Seeds are available on and, and they will yield delicious round black radishes in about 50 to 55 days after planting. The ideal time for planting this “winter radish” is in mid to late summer.

Don’t have a garden and no luck in finding black radish at the local farmers’ market, either? While it’s hard to beat fresh black radishes, Swanson’s full-spectrum Spanish black radish supplements – available here from Amazon – can probably deliver at least some of the benefits of black radishes.

1. Ibrahim Guillermo Castro-Torres, Naranjo-Rodriguez E. B, Dominguez-Ortiz M. A., et al (2012). Antilithiasic and Hypolipidaemic Effects of Raphanus sativus L. var. niger on Mice Fed with a Lithogenic Diet. Journal of Biomedicine and Biotechnology, Volume 2012, Article ID 161205.
2. Paul R. Hanlon, Webber D. M., and Barnes D. M (2007). Aqueous extract from Spanish black radish (Raphanus sativus L. Var. niger) induces detoxification enzymes in the HepG2 human hepatoma cell line. Journal of Agricultural and Food Chemistry, 55(16), p. 6439-46.
3. Paul R. Hanlon, Robbins M. G., Hammon L. D, et al (2009). Aqueous extract from the vegetative portion of Spanish black radish (Raphanus sativus L. var. niger) induces detoxification enzyme expression in HepG2 cells. Journal of Functional Foods, vol. 1 issue 4, p. 356-365.

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Organic Radish Black Spanish Round


Radish: Black Spanish Round
Raphanus sativus
Approximately 70 – 80 seeds per g

Radishes, which are a member of the brassica family are grown for their crisp, juicy, swollen roots. The small, round, red globes are the best known types but radishes come in a variety of shapes and colours. They are very quick growing but pick them young when the flesh is crisp and juicy as they can get tough and woody as the plants get older. Sow successionally to get crops from April to September.
Winter radish can be sown from June and will extend cropping into November. The hotness of radishes comes from compound also found in mustard and horseradish. Radishes contain
antioxidants and Vitamin C.

Black Spanish Round is a very unusual radish. It has a rough Black Skin with crisp white flesh and a peppery taste. It is an interesting radish to grow and can be lifted in Late autumn and stored in boxes of sand.

How to grow:
Strictly speaking radish should be grown in your brassica rotation but they are useful to pop into any space you have in the garden or sown as a catch crop between slower growing
Sow seeds direct into the growing site from March until September. Make drills 2 cm deeps and 15 cm apart in well prepared soil and sprinkle the seed in thinly. Water if dry.
Germination will take just a few days and they can be ready for harvest in as little as three weeks.

Pests and diseases:
Radish can suffer from flea beetle but as they are so quick growing and flea beetle only effects the leaves it is not really a problem.

How to cook:
Radish is usually eaten raw in salads. Cut off the root and the leaves at the base of the stem and wash. Use whole or cut as required.
Sliced radish is great in potato salad where the hot crispness combines well with the cool potato and mayonnaise.
They can also be carved into flowers for a beautiful garnish. There are you tube videos that will show you how to do this.

Black Radish Info: Learn How To Grow Black Radish Plants

Radishes are common spring vegetables. Many of us grow our own because they are easy to grow, take only about 25 days from planting until harvest and are delicious fresh or even cooked. If you would like to expand your radish horizons, try growing black radishes. Read on to find out how to grow black radish and additional black radish info.

Black Radish Info

Black radishes (Raphanus sativus niger) are heirloom radishes that are significantly more peppery than the rosy red radish. They also take about two to three times longer to mature than the common red radish. There are two varieties: a round one that looks much like a black turnip and a long one, which is cylindrical and can get to about 8 inches long. The long variety is more pungent than the round but both have flesh that is crisp, white and peppery. To quell some of the spiciness, remove the black peel from the radishes.

Black radishes are members of the Brassicaceae or Brassica family. These annual root vegetables may also be found under the names Spanish radish, Gros Noir d’Hiver, Noir Gros de Paris and the Black Mooli. Unlike its common radish cousin, black radishes can be stored long after harvest season has past. Submerge the roots in a box or carton of moist sand and then place it in a cool place that won’t freeze or keep black radish in a perforated bag in the refrigerator.

Growing black radishes has a lengthy

history. Ancient Egyptian texts write of feeding radishes, along with onions and garlic, to the pyramid builders. In fact, radishes were grown prior to the building of the pyramids. Evidence has been found in excavations. Black radish was first cultivated in the eastern Mediterranean and is a relative of the wild radish. Growing black radishes became popular in England and France in the 19th century.

Black Radish Uses

Black radishes can be used fresh, sliced into salads or cooked in a variety of ways. They can be sautéed and served as a side dish vegetable, cooked like turnips and doused in butter or cream, diced into soups, stir fries and stews or sliced and served with dip for an appetizer.

Traditionally, black radish uses have also been medicinal. For hundreds of years, Chinese and European people have used the root as a gall bladder tonic and remedy for bile and digestive issues. In India, where it is called Black Mooli, it’s been used to treat liver problems.

Today, black radish has been shown to fight off infection and promote healthy digestion. It also contains raphanin, which can be of benefit to those suffering from either an over or under active thyroid. The leaves are also purported to have a liver detoxifying effect. The root is very high in Vitamin C and also contains potassium, iron, magnesium and the vitamins A, E, and B. You can buy it at herbal supplement stores in capsules or tincture forms.

How to Grow Black Radish

Grow black radishes much as you would the common rosy radish, although as mentioned they will take longer to mature – about 55 days. Plant black radish from mid to late summer (or in the fall in mild climates) either directly sown into the garden or started indoors to be transplanted.

Space the plants 2-4 inches apart or even farther if you want larger radishes. Sow the seeds in well-draining, loamy, soil that has been raked free of stones. Situate the radish bed in an area that gets at least 6 hours of sun and with a soil pH of 5.9 to 6.8.

Black Radish Care

Black radish care is minimal. These plants are unfussy as long as you keep the soil slightly moist. You can pick black radishes when they are 3-4 inches across. Healthy radishes will have an even black to dark brown skin and will be firm and smooth. Avoid radishes that give in to a light squeeze as they will be pithy.

You can then eat your radishes immediately after harvest or store them in the refrigerator for up to two weeks. Remove the greens and wrap the radishes in plastic first. If your radishes are a little too hot for your liking, peel them, slice and salt, and then rise with water before using.

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