Which purine base makes up most of this number?

Xanthine — 255 mg of the 399 mg per 100 g total. The rest is guanine 95, hypoxanthine 30, adenine 19.

Sardine, canned

High purine

Finfish and shellfish

Purine content

399 mgper 100 g

The level label is a plain categorization of the number above — not a statement about whether this food fits your diet. See the full disclaimer.

Composition — per 100 g

Purine, total	399 mg
— Adenine	19 mg
— Guanine	95 mg
— Hypoxanthine	30 mg
— Xanthine	255 mg
Fructose	0.17 g
Calories	185 kcal

Missing figures are shown as “No data available”; values are copied from the sources below and are never estimated. Laboratory values differ between studies and samples.

Where these numbers come from

Purine total and fractions: Clifford, A.J., & Story, D.L. (1976). Levels of purines in foods and their metabolic effects in rats. The Journal of Nutrition, 106(3), 435-42..
Fructose and calories: USDA FoodData Central record #175140.

If you want something similar

Within finfish and shellfish, the same table also lists Oysters, canned at 107 mg and Cod, Atlantic, wild, raw at 110.3 mg per 100 g.

From the author

Personal experience of someone living with gout

It tastes great, but I keep it rare these days — just a little now and then when I crave it.

Personal experience — not medical advice. Read the full disclaimer.

Questions

Which purine base makes up most of this number?: Xanthine — 255 mg of the 399 mg per 100 g total. The rest is guanine 95, hypoxanthine 30, adenine 19.

Looking for a different food? Search the full database — every entry there links back to its source, whether or not it has a page like this one. Or browse high purine foods.