Which purine base makes up most of this number?

Guanine — 1.7 mg of the 3 mg per 100 g total. The rest is adenine 1.2, hypoxanthine 0.1, xanthine 0.

Is this value for raw or cooked food?

Raw — the source entry is Bananas, raw. Cooking changes water content, so compare like with like.

Bananas, raw

Low purine

Fruits

Purine content

3 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	3 mg
— Adenine	1.2 mg
— Guanine	1.7 mg
— Hypoxanthine	0.1 mg
— Xanthine	0 mg
Fructose	No data available
Calories	85 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: Kaneko, K., et al. (2014). Total purine and purine base content of common foodstuffs for facilitating nutritional therapy for gout and hyperuricemia. Biological and Pharmaceutical Bulletin, 37(5), 709-21..
Fructose and calories: USDA FoodData Central record #790774.

If you want something similar

Within fruits, the same table also lists Goji berry at 5.52 mg and Avocado, raw at 18.4 mg per 100 g.

From the author

Personal experience of someone living with gout

I eat bananas at any stage; when things aren't moving well I'll have one too.

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

Questions

Which purine base makes up most of this number?: Guanine — 1.7 mg of the 3 mg per 100 g total. The rest is adenine 1.2, hypoxanthine 0.1, xanthine 0.
Is this value for raw or cooked food?: Raw — the source entry is Bananas, raw. Cooking changes water content, so compare like with like.

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 low purine foods.