Calories in Radish: Nutritional facts for Radish Types

100 grams of raw red radishes contain 16 calories. 100 grams of raw Daikon radish contain 18 calories. 100 grams of boiled red radishes contain 14 calories due to slight changes in water content.

One kilogram (1000g) of raw red radishes contains 160 calories. One kilogram of raw Daikon radish contains 180 calories.

The calorie content of one radish depends on its size and type. One medium raw red radish (10g) contains 2 calories.

Radishes are low-calorie root vegetables packed with various nutrients, antioxidants, and fiber, offering several health benefits. The potential health benefits include:

• Rich in Vitamin C: Radishes are a good source of Vitamin C, a potent antioxidant that helps boost the immune system, protect cells from damage, and aids in collagen production for healthy skin and connective tissues. (National Institutes of Health, Office of Dietary Supplements. Vitamin C Fact Sheet for Health Professionals)
• Good Source of Fiber: They provide dietary fiber, which is crucial for digestive health. Fiber aids in regular bowel movements, helps prevent constipation, and can contribute to a feeling of fullness, potentially supporting weight management. (Anderson JW, Baird P, et al. 2009. Health benefits of dietary fiber)
• Contain Glucosinolates and Isothiocyanates: Like other cruciferous vegetables, radishes contain glucosinolates, which break down into isothiocyanates. These compounds have been studied for their potential anti-cancer properties, including inhibiting cancer cell growth and promoting detoxification. (Beevi SS, Mangamoori LN, et al. 2009. Isothiocyanates from L.] R. Br. (Radish) Ssprout: Isolation, identification, and and Nrf2 activation)
• Provide Antioxidants: Radishes contain various antioxidants, including anthocyanins (in red varieties), which give them their color and help protect against oxidative stress, reducing the risk of chronic diseases. (Manivannan A, Kim JH, et al. 2019. The multifaceted role of anthocyanins in human health)
• May Support Heart Health: The fiber, potassium, and antioxidants in radishes can contribute to heart health. Potassium helps regulate blood pressure, while fiber can help manage cholesterol levels. (Aburto NJ, Hanson S, et al. 2013. Effect of increased potassium intake on cardiovascular risk factors and disease: systematic review and meta-analyses)
• Hydrating: Radishes have high water content, which contributes to overall hydration. Staying properly hydrated is essential for many bodily functions, including temperature regulation and nutrient transport.
• Low in Calories and Fat: Radishes are very low in calories and fat, making them a good addition to a calorie-controlled diet or for those looking to add volume and crunch to meals without significantly increasing calorie intake.
• May Have Antifungal Properties: Some research suggests that compounds in radishes, such as RsAFP2, possess antifungal properties. (Terras FR, Eggermont K, et al. 1992. Small cysteine-rich antifungal proteins from radish: their role in host defense)

Radishes can have some downsides for certain individuals or when consumed in large quantities:

• May Cause Digestive Discomfort (Gas and Bloating): Radishes contain certain carbohydrates and fiber that can be difficult for some people to digest, especially when eaten raw in large amounts. This can lead to gas, bloating, or abdominal discomfort, particularly in individuals with sensitive digestive systems or Irritable Bowel Syndrome (IBS). (Muir JG, Gibson PR. 2006. The SIBO/FODMAP connection)
• Can Worsen Thyroid Issues (Goitrogens, in very high amounts): Radishes are cruciferous vegetables and contain goitrogens, compounds that can interfere with thyroid hormone production in individuals with iodine deficiency or pre-existing thyroid conditions, particularly if consumed raw in very large quantities. However, for most people with normal thyroid function and adequate iodine intake, moderate consumption is unlikely to cause problems, and cooking often reduces goitrogen levels. (Messina M, Redmond G. 2006. Effects of soy protein and soybean isoflavones on thyroid function in healthy adults and hypothyroid patients: a review of the relevant literature)
• Spicy Varieties May Irritate Mouth or Stomach: Some radish varieties, like black radishes or very pungent red radishes, can have a spicy or peppery flavor that might irritate the mouth or stomach lining in sensitive individuals, or exacerbate symptoms of acid reflux.
• Potential for Allergic Reactions (Rare): While rare, allergic reactions to radishes can occur in some individuals, leading to symptoms like itching, hives, or digestive upset.

Yes, radishes are generally good for you. They are a low-calorie, nutrient-rich root vegetable offering a good dose of Vitamin C, fiber, and various beneficial plant compounds, including glucosinolates and antioxidants like anthocyanins. These components contribute to a strong immune system, healthy digestion, and may offer protection against certain chronic diseases. Research indicates that the compounds found in cruciferous vegetables such as radishes have potential anti-cancer effects and support the body's natural detoxification processes (Linus Pauling Institute. Cruciferous Vegetables). While they can cause digestive discomfort for some due to their fiber and specific carbohydrates, and very high intake might affect thyroid function in susceptible individuals, their overall nutritional profile makes them a healthy and flavorful addition to most diets when consumed in moderation.

The calorie content among different radish types remains consistently low, although slight variations exist. Common red radishes, French Breakfast radishes, Daikon radishes, and White Icicle radishes typically contain between 16 to 22 calories per 100g. Watermelon radishes are also in this low range, around 20-25 calories per 100g. Black radishes tend to be slightly higher in calories, ranging from 30 to 35 calories per 100g, which is still very low compared to most other vegetables or food groups. These minor differences are generally due to slight variations in carbohydrate and water content among the cultivars. All types of radishes are considered very low-calorie foods.

Yes, a radish is a vegetable. Specifically, it is the edible root of a plant in the Brassicaceae family. This family is also known as the mustard family or cruciferous vegetables. Other well-known members of the Brassicaceae family include broccoli, cauliflower, cabbage, kale, Brussels sprouts, and turnips. These vegetables are recognized for their characteristic pungent flavors, often due to sulfur-containing compounds called glucosinolates, and their rich nutritional profiles.

Due to their pungent and peppery flavor profile, radishes are almost never used in desserts. Their taste characteristics are fundamentally savory and do not lend themselves to sweet applications in any mainstream or traditional culinary context. 

Yes, radish macros can appear to change when cooked, though the primary effect is due to moisture loss and nutrient concentration or degradation rather than a fundamental alteration of the macronutrients themselves. When radishes are cooked (roasted, boiled, or sautéed), they lose water. This water loss concentrates the remaining components, so per 100g of cooked radish, the carbohydrate, protein, and fiber content might seem slightly higher compared to 100g of raw radish. The total fat content, already negligible, remains minimal. Water-soluble vitamins, particularly Vitamin C and some B vitamins like folate, are susceptible to degradation with heat and can leach into cooking water if boiled. Minerals are generally more stable, but some loss can also occur with boiling if the cooking liquid is discarded. Roasting tends to preserve more nutrients than boiling.

The origin of the radish (Raphanus sativus) is somewhat uncertain, with evidence pointing towards Southeast Asia or Central Asia as its likely birthplace, predating recorded history. Cultivation is ancient, with radishes being grown in Egypt as early as 2700 BCE and subsequently in ancient Greece and Rome. They were valued not only as a food source but also for their purported medicinal properties. Different varieties were developed over centuries as cultivation spread across Asia and Europe. 

Kimchi, which is a staple in Korean cuisine, uses radish (known as "mu" in Korean). It is a traditional ingredient, either as the primary component (kkakdugi - diced radish kimchi) or mixed with napa cabbage. The practice of fermenting vegetables in Korea dates back thousands of years as a method of preservation. Kimchi, in its many forms incorporating chili peppers (introduced in the 17th century), garlic, ginger, and jeotgal (fermented seafood), evolved into a complex dish, deeply ingrained in Korean culture and recognized globally for its spicy, tangy, and umami flavors, and probiotic benefits.