EXPLORE A NUTRIENT

Hydroxyproline

Discover how amounts vary across foods, on a shared basis for comparison.

An individually reported amino acid. The reference depicts trans-4-hydroxy-L-proline. [1] [2]

trans-4-hydroxy-L-proline — 2D chemical diagram — **Depicted form: trans-4-hydroxy-L-proline**
This reference form does not represent every form included in the USDA quantity.
Description, source and attribution
Reference depiction: trans-4-hydroxy-L-proline. Formula C5H9NO3; PubChem CID 5810; charge 0. This specified form does not represent every form or molecule included in the USDA quantity.
PubChem Compound 5810, 2D Structure. NCBI / National Library of Medicine. Source · Reuse terms
Source check: 2026-09-13 · No scientific editorial review.

A COMMON BASIS

Foods, per 100 g

100 g

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8 foods with data 98 not reported, excluded from ranking

Flaxseed
Flaxseed; source does not specify grinding.
0.175 g
Pork tenderloin
Roasted pork tenderloin, separable lean only; seasoning not specified.
0.067 g
Black pepper
Black pepper spice.
0 g
Whole milk
Whole cow's milk, 3.25% milkfat, with added vitamin D.
0 g
Dried oregano
Dried oregano.
0 g
Green plantain
Green plantain, boiled; added salt is not stated in the source description.
0 g
Ricotta cheese
Whole-milk ricotta cheese.
0 g
Ground turmeric
Ground turmeric spice.
0 g

All results are sorted before pagination. Bars compare amounts within this search; they do not indicate health benefits. Not reported does not mean zero.

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UNDERSTAND THE DATA

The nutrient, in context

How to read this ranking

This page compares Hydroxyproline (Hydroxyproline), in g per 100 g of food.

Chemical forms and measurement methods remain separate. “Not reported” means a value is unavailable, not that the food contains zero. A food’s rank does not determine your individual needs or diagnose a deficiency.

Intake guidance

There is no validated NIH ODS fact sheet for this identity in Bitameans’ published version. We do not assign another nutrient’s recommendations to this form. An absent fact sheet does not mean that no upper intake limit exists.

Browse the NIH ODS fact-sheet directory

Identity and structure sources

PubChem Compound 5810: L-Hydroxyproline · Accessed 2026-09-13
USDA FoodData Central: Foundation Foods Documentation · Accessed 2026-09-13

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