Tier 3 — preclinical
Hydroxyproline ingestion and urinary oxalate and glycolate excretion
Kidney International
2006
70(11):1929–1934
Bibliography
- PubMed
- PMID 17021603
- PubMed Central
- PMC2268952
- Funding
- The accessible PubMed/full-text metadata reviewed on 2026-09-23 did not expose a definitive funding statement for this 2006 study.
- Competing interests
- The accessible PubMed/full-text metadata reviewed on 2026-09-23 did not expose a definitive competing-interest statement for this 2006 study.
Study snapshot
| Design | Controlled-diet human feeding comparison of gelatin versus whey and gelatin dose challenges |
|---|---|
| Model | Healthy volunteers without known kidney stones |
| Sample | 10 participants in controlled gelatin/whey feeding comparison; additional dose-challenge experiments |
| Intervention | 30 g/day gelatin vs whey on controlled diet plus 5- and 10-g gelatin loads |
| Duration | Two 5-day controlled diet periods plus dose challenges |
| Endpoints | 24-hour urinary oxalate; Urinary glycolate; Plasma hydroxyproline |
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