What the evidence says. Several controlled trials; effects real but modest or context-dependent.
Nutrition per serving 1 cup sliced, raw (116 g)
Sugars2.2 g2%
Fibre1.9 g2%
Protein0.8 g1%
Other111.1 g96%
What's in one serving, by weight — average composition (USDA).One serving as % of the adult daily requirement (FDA Daily Values). The bold outer ring = 100% of a day's needs.
Radish is a vegetable used for supports healthy blood pressure (cruciferous rct evidence). NutriDex grades the human evidence as Moderate. Radish is a low-energy cruciferous vegetable whose signature bioactives are glucosinolates—chiefly glucoraphenin and glucoraphasatin—that hydrolyze to the isothiocyanate sulforaphene, a phase-2 detoxification-enzyme inducer related to broccoli's sulforaphane. Direct human RCT evidence on radish itself is limited, so the strongest support comes from cruciferous-vegetable trials and cohorts: a randomized crossover trial (VESSEL) showed ~300 g/day of cruciferous vegetables lowered 24-h systolic blood pressure by 2.5 mmHg and improved glycemic control versus root/squash controls, and large prospective cohorts link higher cruciferous intake to lower cardiovascular mortality and colorectal cancer risk. Evidence for type-2-diabetes prevention is suggestive but not yet convincing.
A cruciferous (Brassicaceae) vegetable: raw consumption supplies goitrogenic glucosinolates that can modestly impair thyroid iodine uptake in very high intakes or iodine deficiency—not a concern at culinary amounts. Generally well tolerated; low in vitamin K so minimal warfarin interaction. Large amounts may cause gas/bloating in sensitive individuals. Educational only — always check with your doctor or pharmacist before combining Radish with any medicine.
Radish is most often taken for Supports healthy blood pressure (cruciferous RCT evidence), Very low calorie, hydrating, high water content, Provides vitamin C and potassium, Source of glucosinolate-derived isothiocyanates (sulforaphene). A crisp, peppery cruciferous root—low-calorie, vitamin-C-rich, and a source of glucosinolate-derived isothiocyanates.
Does Radish work — what does the evidence say?
Moderate evidence. Several controlled trials; effects real but modest or context-dependent. Radish is a low-energy cruciferous vegetable whose signature bioactives are glucosinolates—chiefly glucoraphenin and glucoraphasatin—that hydrolyze to the isothiocyanate sulforaphene, a phase-2 detoxification-enzyme inducer related to broccoli's sulforaphane. Direct human RCT evidence on radish itself is limited, so the strongest support comes from cruciferous-vegetable trials and cohorts: a randomized crossover trial (VESSEL) showed ~300 g/day of cruciferous vegetables lowered 24-h systolic blood pressure by 2.5 mmHg and improved glycemic control versus root/squash controls, and large prospective cohorts link higher cruciferous intake to lower cardiovascular mortality and colorectal cancer risk. Evidence for type-2-diabetes prevention is suggestive but not yet convincing.
What is the typical dose of Radish?
Standard serving: 1 cup sliced, raw (116 g). Eat whole (with skin where edible); favour whole fruit over juice.
Is Radish safe? Any cautions or side effects?
A cruciferous (Brassicaceae) vegetable: raw consumption supplies goitrogenic glucosinolates that can modestly impair thyroid iodine uptake in very high intakes or iodine deficiency—not a concern at culinary amounts. Generally well tolerated; low in vitamin K so minimal warfarin interaction. Large amounts may cause gas/bloating in sensitive individuals.
How many studies support Radish?
NutriDex cites 9 sources for Radish, graded "Moderate".
Cite this page
APA
Peh, D. (2026). Radish: Benefits, Dosage, Side Effects & Evidence. NutriDex — The Supplement Research Compendium. Retrieved 16 Sept 2026, from https://nutridex.info/s/radish
BibTeX
@misc{nutridex_radish,
author = {Peh, Daryl},
title = {Radish: Benefits, Dosage, Side Effects \& Evidence},
year = {2026},
howpublished = {NutriDex --- The Supplement Research Compendium},
url = {https://nutridex.info/s/radish},
note = {Reviewed by Dr Daryl Peh, MBBS Singapore, MMed FM. Accessed 2026-09-16}
}
For medical claims, citing the underlying primary studies linked above is preferred. NutriDex is an educational reference, not medical advice.