Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Radish has none that clears that bar.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, the record shows each on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
20 pairings are live across the library today. Checked 20 July 2026.
No study gave these as a pair, so they are not in the card above. But the reason they belong together is settled biochemistry, not a guess, so it is worth knowing.
Radish stores glucoraphenin and related glucosinolates that only become the active isothiocyanate after myrosinase cleaves the glucose. Raw radish carries plenty of active myrosinase, while many processed broccoli products have had theirs destroyed by heat. Adding a myrosinase-active raw brassica alongside a heat-treated glucosinolate source restores the conversion step. That is enzymatic chemistry, well established across the family.
Sulforaphene from radish and sulforaphane from broccoli differ by a single double bond and both act as isothiocyanates on the same cellular handling routes. Taken together they load the same pathway rather than two separate ones. The additive framing is chemical, not a claim about a measured combined outcome. Human co-administration work is not available.
Radish accumulates inorganic nitrate at levels comparable to other leafy and root vegetables in the high-nitrate group. Dietary nitrate is reduced to nitrite by oral bacteria and then further along the enterosalivary route. Combining two nitrate vegetables raises the total substrate entering that sequence. Note the same route is blocked by antibacterial mouthwash, which is worth knowing for anyone stacking nitrate sources.
Thiocyanate is a recognised hydrolysis product of brassica glucosinolates and it competes directly with iodide at the sodium-iodide symporter. This is settled physiology and the reason the family carries a goitrogenic label at high sustained intake with low iodine status. Ordinary culinary radish intake alongside adequate iodine is not the scenario of concern. Concentrated brassica extracts taken daily by someone with a low iodine intake are.
Radish is a modest but real ascorbate source in the raw state, with the greens carrying more than the root. Ascorbate is heat labile, so cooking removes much of what is there. The pairing is nutritional co-delivery rather than a special interaction. Anyone taking radish as a dried extract should not expect the vitamin C to have survived.
Black radish in particular sits in the European traditional category of bile-stimulating foods and is a common component of liver and gallbladder tonic preparations. Ox bile supplies bile acids directly rather than stimulating their release. The two act at different points of the same digestive step. The traditional grounding is strong, the controlled human data is not.
Isothiocyanates released from glucosinolates act on phase II conjugation, a well-characterised property of the compound class. Silymarin is a conventional companion in preparations aimed at hepatic handling, and black radish and milk thistle appear together in traditional European formulas. The mechanistic overlap is real at the pathway level. No human study has tested the pair together.
Raw radish carries active myrosinase, and daikon in particular is served raw and grated in Japanese cuisine specifically alongside fatty and fried food. Supplemental enzyme blends supply hydrolytic capacity for protein, fat and starch, which is a different set of substrates. The pairing is complementary rather than overlapping. Cooking radish inactivates its own enzymes, which is why the raw form is the relevant one here.
Nothing specific on file for Radish. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.These are the studies our verdict leans on, chosen from the 2 we read for Radish. The full linked list is below.
3 sources behind our Radish verdict: peer-reviewed studies and registered clinical trials. Every one links straight to PubMed, the journal, or ClinicalTrials.gov. Read them yourself.
Evidence surfaced via Semantic Scholar (Allen Institute for AI) and ClinicalTrials.gov. Ranked by study type and citation weight, not cherry-picked.
Read this carefully. These are 9,737 voluntary, unverified reactions reported to the FDA (openFDA). The number mostly reflects how popular Radish is, not how risky it is. A report is not proof Radish caused anything. It is a signal of what to watch for, nothing more.
Source: openFDA adverse-event reports. Voluntary reporting, not an incidence rate.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.