Purine content of Walnuts
Walnuts contains 19.6 mg of total purines per 100 g, which puts it in the low band.
Measured as Walnuts · ODS-NIH 2.0
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Purines by serving size
Purines arrive by the gram, not by the label. This is the measured value above, scaled to portions you would actually eat.
| Portion | Total purines |
|---|---|
| Garnish or side (30 g) | 6 mg |
| Standard 100 g | 20 mg |
| Typical serving (150 g) | 29 mg |
| Large main course (250 g) | 49 mg |
Why the numbers vary
The nuts and seeds measured here run from 16 mg to 80 mg per 100 g, so the category is a poor guide on its own — which specific food, and prepared how, decides almost everything.
Questions about walnuts and purines
Is walnuts high in purines?
At 19.6 mg per 100 g, walnuts falls in the low band (under 30 mg per 100 g) on the six-level scale used across this site.
How many purines are in a serving of walnuts?
garnish or side (30 g) contains about 6 mg, standard 100 g contains about 20 mg, typical serving (150 g) contains about 29 mg and large main course (250 g) contains about 49 mg, based on the value per 100 g.
Where does this walnuts purine value come from?
USDA and ODS-NIH Database for the Purine Content of Foods, Release 2.0 (2025). Values are total purines in milligrams per 100 g of the food as described, and nothing is estimated or averaged across sources.
How does walnuts compare with other nuts and seeds?
The median for nuts and seeds in this database is 41 mg per 100 g, with a range of 16 to 80 mg. Walnuts is below that median.
Source
- USDA and ODS-NIH Database for the Purine Content of Foods, Release 2.0 (2025) — Agricultural Research Service, U.S. Department of Agriculture.
Reference information only. Purine values describe foods, not people: they cannot tell you what is safe for you to eat, and nothing here diagnoses or treats gout. Talk to your doctor or dietitian about your own diet and medication.