Radish: Research-Backed Benefits & How To Use

by Meenakshi Nagdeve last updated - Medically reviewed by Vanessa Voltolina (MS, RD)

Radishes are a root crop that can be juicy, pungent, or sweet in taste. They also come in a variety of colors, including white, red, purple, or black. In terms of shape, they can be long and cylindrical, or round. Radishes may be eaten raw, cooked, or pickled. The oil obtained from the seeds of radish has a number of beneficial health applications.

What is Radish?

Radish is an edible root vegetable with a pungent taste. The parts of the radish plant that are commonly consumed are the leaves, flowers, pods, and seeds. The scientific name of radish is Raphanus sativus which belongs to the Brassicaceae family. Radishes are also known as daikon in some parts of the world, primarily in Asian markets. [1]

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Radish Nutrition

According to the USDA FoodData Central, radish is rich in various nutrients which include potassium, calcium, sodium, and vitamin C. It contains vitamins including B-vitamins (thiamin, niacin, riboflavin, folate, and vitamin B6), vitamin A, and vitamin K. Radishes are mostly composed of water so they are a great way to keep your body hydrated. Every 100 grams of radish contains 95.27 grams of water. It also provides minerals such as iron, magnesium, phosphorus, and zinc. [3]

Carbs in Radish

Radish is also one of the many low-carbohydrate, non-starchy, vegetables. One cup of sliced radishes will provide around 3.4 grams of carbohydrates, out of which most of it is dietary fiber.

A close-up image of white radish or daikon

Radish leaves can be used in place of lettuce in salads and burgers. Photo Credit: Shutterstock

Nutrition Facts

Radishes, raw
Serving Size :
Water [g]95.27
Energy 16
Energy [kJ]66
Protein [g]0.68
Total lipid (fat) [g]0.1
Ash [g]0.55
Carbohydrate, by difference [g]3.4
Fiber, total dietary [g]1.6
Sugars, total including NLEA [g]1.86
Sucrose [g]0.1
Glucose (dextrose) [g]1.05
Fructose [g]0.71
Calcium, Ca [mg]25
Iron, Fe [mg]0.34
Magnesium, Mg [mg]10
Phosphorus, P [mg]20
Potassium, K [mg]233
Sodium, Na [mg]39
Zinc, Zn [mg]0.28
Copper, Cu [mg]0.05
Manganese, Mn [mg]0.07
Selenium, Se [µg]0.6
Fluoride, F [µg]6
Vitamin C, total ascorbic acid [mg]14.8
Thiamin [mg]0.01
Riboflavin [mg]0.04
Niacin [mg]0.25
Pantothenic acid [mg]0.17
Vitamin B-6 [mg]0.07
Folate, total [µg]25
Folate, food [µg]25
Folate, DFE [µg]25
Choline, total [mg]6.5
Betaine [mg]0.1
Carotene, beta [µg]4
Vitamin A, IU [IU]7
Lutein + zeaxanthin [µg]10
Tocotrienol, alpha [mg]0.02
Vitamin K (phylloquinone) [µg]1.3
Fatty acids, total saturated [g]0.03
16:0 [g]0.03
18:0 [g]0
Fatty acids, total monounsaturated [g]0.02
18:1 [g]0.02
Fatty acids, total polyunsaturated [g]0.05
18:2 [g]0.02
18:3 [g]0.03
Phytosterols [mg]7
Tryptophan [g]0.01
Threonine [g]0.02
Isoleucine [g]0.02
Leucine [g]0.03
Lysine [g]0.03
Methionine [g]0.01
Cystine [g]0.01
Phenylalanine [g]0.04
Tyrosine [g]0.01
Valine [g]0.04
Arginine [g]0.04
Histidine [g]0.01
Alanine [g]0.03
Aspartic acid [g]0.06
Glutamic acid [g]0.16
Glycine [g]0.03
Proline [g]0.02
Serine [g]0.03
Sources include : USDA [4]

Health Benefits of Radish

The benefits of radishes in the treatment or prevention of certain ailments and on certain body parts are listed below:

Aids in Digestion

Radishes are rich in fiber which can add considerable bulk (and regularity) to bowel movements that may help relieve the symptoms of constipation. A 2008 study suggests that radish leaves may help in healing gastrointestinal infections and get rid of the symptoms of diarrhea. Furthermore, radishes are known to promote the production of bile. Bile is one of the most important parts of good digestion, and also helps to assist both the liver and gallbladder. [5]

Prevents Piles

Radishes are considered to have roughage and are composed of indigestible carbohydrates (specifically lignin, a type of insoluble fiber). This facilitates digestion, water retention, and alleviates constipation, which is one of the major causes of piles also referred to as hemorrhoids. As a good detoxifier, they help relieve the symptoms of piles very quickly. Radish juice also soothes the digestive and excretory system, further relieving the symptoms of piles. [6]

Urinary Disorders

Radishes are diuretic in nature, which means that they increase the production of urine. Radish juice also helps reduce inflammation and may relieve the burning sensation during urination. It may also inhibit infections in the kidneys and urinary system, thus helping the treatment of various urinary conditions that are exacerbated by excess toxins in the system. [7]

A 2012 study revealed that radish has antifungal properties. It can help induce cell death in a common fungus known as Candida albicans, which can cause oral infections and vaginal yeast infections. [8]

Weight Loss

Radishes are very filling, which means that they satisfy your hunger without running up the calorie count. They are also low in digestible carbohydrates, high in roughage (insoluble fiber), and contain a large water content. Thus they are a very good dietary option for those who are determined to lose weight. Furthermore, they are high in fiber and low on the glycemic index (GI), which means that they regulate bowel movements, thereby helping in weight loss and increasing the efficiency of metabolism. [9]

Improves Cardiovascular Health

Radishes are a great source of anthocyanins, a flavonoid, which not only give color to radishes but also provide numerous health benefits. Anthocyanins have been the subject of numerous medical studies, and have been positively associated with reducing the occurrence of cardiovascular diseases. [10] [11]

Leucoderma (Vitiligo)

The detoxifying and anti-carcinogenic properties of radishes make their seeds useful in the treatment of leucoderma. You can eat radishes as well to aid in the treatment of leucoderma. [12]

Note: Radish seeds can be powdered and soaked in vinegar, ginger juice, and then applied on the white patches. However, consult a medical professional before trying this.

Relieves Respiratory Disorders

Radishes are an anti-congestive, meaning that they decrease congestion of the respiratory system including irritation of the nose, throat, windpipe, and lungs that can come from colds, infections, allergies, and other causes. They are a great disinfectant and are rich in vitamins, which further protects the respiratory system. According to a book titled, Pharmacology And Applications Of Chinese Materia Medica (Volume Ii), Volume 2, authored by Paul Pui-hay, the radish was traditionally used as a remedy for pulmonary tuberculosis. [13]

Radishes have a strong, natural spice to them, and they are also quite pungent, which is very good for preventing illnesses. They also eliminate excess mucus in the throat. Furthermore, radishes have been known to soothe sore throats and relieve congestion by clearing the sinuses.

Lowers Blood Pressure

Radishes are a very good source of potassium, which contributes to a large list of health benefits. Research by Dr. Haddy, Mayo Clinic, suggests that potassium helps in reducing blood pressure. It is also a main component of the very popular and effective DASH diet. When potassium interacts with the arterial supply of vascular beds, it can relax the blood vessels, and therefore promote blood flow. It also reduces the blood pressure by widening the flow of the blood, instead of forcing it through narrow, constricted channels. [14] [15]

Health benefits of radish infographic

Radishes have a strong, natural spice to them, and they are also quite pungent.

Manages Diabetes

Radishes have long been known to have a low glycemic index, which means that eating a radish does not significantly impact blood sugar levels. Also, an in vivo study published in the journal Nutrition in 2017 states that drinking radish root juice has a positive effect on the blood glucose levels of those with diabetes. They may also help regulate the absorption of sugar into the bloodstream, meaning that people with diabetes don’t have to worry as much about sudden spikes or drops when eating or being away from food for a certain amount of time. Given the nature of this study, more research is needed to confirm the efficacy of these results. [16]

Skin Care

Vitamin C, zinc, and some members of the vitamin-B family, present in radishes are good for the skin. The high water content in radishes also helps to maintain healthy moisture levels and hydration of the skin. Smashed raw radish is a good cleanser and serves as an efficient face mask. Due to its disinfectant properties, radishes also help clear up skin disorders like dry skin, rashes, and cracks. Due to the presence of niacin, it also helps prevent the skin condition pellagra. [17]

Reduces Fever

It is considered by some that radishes help lower body temperature and relieve inflammation from fevers. A good method of intake is drinking radish juice mixed with black salt, and since they act as good disinfectants, radishes also fight infections that can cause fever.

Protects Kidneys

Radishes are thought to act as a diuretic, cleanser, and disinfectant which can aid in relieving symptoms of kidney ailments. They are low in potassium and phosphorus and may make a great choice for patients on hemodialysis. [18]

Insect Bites

Radishes have antipruritic properties and can be used as an effective treatment for insect bites and bee stings. Radish juice may also reduce pain and swelling and soothes the affected area. [19]

Protects Liver & Gallbladder

Radishes are considered beneficial for liver and gallbladder functions and a few studies have been conducted to determine the effects.

One such study published in 2012 suggests that white radish enzyme extracts may help protect against hepatotoxicity. However, as this was a study conducted using animal subjects, further research is required to confirm the true dose, impact, and efficacy of radishes on liver health. [20]

Black radish juice has been used as a folk remedy by people from Mexico to eliminate gallstones. An animal study published in the Journal of Biomedicine and Biotechnology found that black radish juice may provide relief from cholesterol gallstones and may also reduce triglycerides and increase HDL or good cholesterol levels. [21]

Helps Fight Jaundice

Radish and radish leaves have been used as a home remedy against jaundice, especially in Indian, Greek-Arabic, and Unani branches of medicine. They are believed to be helpful in maintaining stomach and digestive health. [22]

Other Benefits

Apart from the benefits outlined above, radishes work well as an appetizer, breath freshener, laxative, and metabolism regulator. The intake of radishes may help protect against various health conditions as mentioned above.

Whether it is to improve digestive health, enhance your skin, or just incorporate more vegetables into your diet, you can’t go wrong with nutrient-packed power food radishes!

How to Use Radish In Your Diet?

As seen above, radishes have numerous health benefits, and adding them to your daily diet will not only give you the required nutrition boost but also lend a pungent, peppery, and zesty flavor to many recipes. Feel free to experiment and incorporate radishes in your diet in the most fun and unique way possible. Here are a few recipe ideas that we have for you.

  • Baked: You can bake radishes and saute them with garlic, herbs, and cheese to have it as a delicious and healthy dinner option.
  • Sandwiches: Thin radish slices can be added to your regular vegetable sandwich.
  • Pickled Radishes: Pickled radishes can be used in kimchis, a famous traditional Korean appetizer of salted and fermented vegetables.
  • Salads: You can also add the crunchiness of radishes to your green and vegetable salads.
  • Tacos & Indian Bread: Radishes can be grated and cooked in a variety of spices. This mixture can then be added as a stuffing in tacos or your regular Indian bread (known as parathas). Note that the spices used for both the dishes will be different from one another.
  • Grilled: Round radish slices can be grilled using olive oil, salt, and herbs and served as a side dish with beef/chicken/pork, or fish steak.
  • Creamy Yogurt: The peppery flavor of grated or thinly sliced radishes goes very well with creamy yogurt and works well as a delicious dip to be had with fish or chicken. Indians call it raita.
  • Healthy Snack: You can also have sliced, roasted watermelon radishes with any dip of your choice as it makes for a great healthy snack. The zinginess of radishes goes brilliantly well with the sour and creamy feta cheese dip.
  • Radish Green Salad: Don’t get rid of radish greens as they are nutritious. You can add them with other greens like kale, arugula, spinach to make a green salad. Sprinkle olive oil, vinaigrette sauce, and garnish them with roasted almonds or any other dry fruit of your choice and you have a delicious, healthy, crunchy salad for yourself!
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About the Author

Meenakshi Nagdeve, Co-Founder, Organic Facts is a health and wellness enthusiast and is responsible for managing it. She has completed the Nutrition And Healthy Living Cornell Certificate Program, Cornell University, US. She holds a Post Graduate Diploma in Management from IIM Bangalore and B. Tech in Metallurgical Engineering and Materials Science from IIT Bombay. Prior to this, she worked for a few years in IT and Financial services. An ardent follower of naturopathy, she believes in healing with foods. In her free time, she loves to travel and taste different types of teas.

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