Kidney — answers to beef kidney (glandular)
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A dried, powdered preparation made from animal kidney tissue, typically bovine, sold as a "glandular" supplement or as a nutrient-dense organ meat concentrate.
Why it’s used
Taken by some under the traditional glandular-supplement idea that eating an organ supports the corresponding organ in the body, and sometimes simply as a source of organ-meat nutrients such as B vitamins and minerals.
What the evidence says
There is no established clinical evidence that eating animal kidney tissue in supplement form affects human kidney function. Kidney tissue does supply nutrients found generally in organ meats, but supplement-specific dosing and effects have not been studied in controlled trials.
Where we looked
There was no paper to cite here, so this is the search instead — run it yourself and see what we saw.
- PubMed: 1069 records · searched August 2026
"Kidney"[Title/Abstract] AND ("dietary supplements"[MeSH] OR supplementation[Title/Abstract] OR supplement[Title/Abstract] OR supplements[Title/Abstract] OR "oral administration"[Title/Abstract]) AND (randomized controlled trial[pt] OR clinical trial[pt] OR meta-analysis[pt] OR systematic review[pt]) AND humans[MeSH] - PubMed: 629401 records · searched August 2026
"Kidney"[Title/Abstract]
This says what this database holds under these terms. It is not a finding that no research exists.
Context
No standardized dosing has been established in controlled research for glandular kidney supplements.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.