Which purine base makes up most of this number?

Hypoxanthine — 84.1 mg of the 124.8 mg per 100 g total. The rest is guanine 14.8, adenine 14.7, xanthine 11.2.

Is this value for raw or cooked food?

Cooked — the source entry is Beef roast, cooked (unspecified). Values per 100 g are not directly interchangeable between raw and cooked entries.

Why is hypoxanthine the largest fraction here?

Hypoxanthine accounts for 84.1 of the 124.8 mg total — about 67% of the number.

Beef roast, cooked (unspecified)

Moderate purine

Beef (other than organs)

Purine content

125 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	125 mg
— Adenine	14.7 mg
— Guanine	14.8 mg
— Hypoxanthine	84.1 mg
— Xanthine	11.2 mg
Fructose	No data available
Calories	176 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: Brulé, D., et al. (1988). Purine content of selected Canadian food products. Journal of Food Composition and Analysis, 1(2),130-8..
Fructose and calories: USDA FoodData Central record #334897.

If you want something similar

Within beef (other than organs), the same table also lists Beef, sirloin, raw at 124.8 mg and Beef, ground, 73% lean meat / 27% fat, raw at 133.3 mg per 100 g.

From the author

Personal experience of someone living with gout

I eat it as usual between flares and skip it during one.

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

Questions

Which purine base makes up most of this number?: Hypoxanthine — 84.1 mg of the 124.8 mg per 100 g total. The rest is guanine 14.8, adenine 14.7, xanthine 11.2.
Is this value for raw or cooked food?: Cooked — the source entry is Beef roast, cooked (unspecified). Values per 100 g are not directly interchangeable between raw and cooked entries.
Why is hypoxanthine the largest fraction here?: Hypoxanthine accounts for 84.1 of the 124.8 mg total — about 67% of the number.

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 moderate purine foods.