Kidney and urinary function
Parsley tea is sold widely as a kidney flush and diuretic. The diuretic effect has been shown in rats, human trials are essentially absent, and the herb also contains oxalate, which points the opposite way for stone-formers.
Insufficient evidence. Not enough human research to say anything useful yet.
3 sources
- Effect of parsley (Petroselinum crispum) intake on urinary apigenin excretion, blood antioxidant enzymes and biomarkers for oxidative stress in human subjects.(opens in a new tab)
Randomised controlled trial · The British journal of nutrition · 1999 · PMID 10615220
- Efficacy of parsley seed-supplemented bread in improving serum osteopontin level and renal health in obese women: A nutritional intervention study.(opens in a new tab)
Clinical trial · Clinical nutrition ESPEN · 2024 · PMID 38220388
- Absorption, distribution, metabolism and excretion of apigenin and its glycosides in healthy male adults.(opens in a new tab)
Clinical trial · Free radical biology & medicine · 2022 · PMID 35452808
Deep research mode adds each paper’s own conclusion and stated limitations.