Which purine base makes up most of this number?

Adenine — 1 mg of the 1.67 mg per 100 g total. The rest is guanine 0.67, hypoxanthine 0, xanthine 0.

Why are hypoxanthine and xanthine zero here?

The source reports a measured zero for both bases in this entry — not a missing value.

Green tea beverage

Low purine

Beverages

Purine content

1.67 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	1.67 mg
— Adenine	1 mg
— Guanine	0.67 mg
— Hypoxanthine	0 mg
— Xanthine	0 mg
Fructose	0 g
Calories	1 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. (2020). Determination of total purine and purine base content of 80 food products to aid nutritional therapy for gout and hyperuricemia. Nucleosides, Nucleotides, and Nucleic Acids, 39(10-12), 1449-57..
Fructose and calories: USDA FoodData Central record #171917.

If you want something similar

Within beverages, the same table also lists Vegetable juice at 13.7 mg per 100 g.

From the author

Personal experience of someone living with gout

The sugar is the only issue for me, so I go for the unsweetened version.

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

Questions

Which purine base makes up most of this number?: Adenine — 1 mg of the 1.67 mg per 100 g total. The rest is guanine 0.67, hypoxanthine 0, xanthine 0.
Why are hypoxanthine and xanthine zero here?: The source reports a measured zero for both bases in this entry — not a missing value.

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.