Which purine base makes up most of this number?

Guanine — 0.8 mg of the 1.4 mg per 100 g total. The rest is adenine 0.6, 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.

Yogurt, liquid

Low purine

Dairy and Eggs

Purine content

1.4 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	1.4 mg
— Adenine	0.6 mg
— Guanine	0.8 mg
— Hypoxanthine	0 mg
— Xanthine	0 mg
Fructose	No data available
Calories	61 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 #171284.

If you want something similar

Within dairy and eggs, the same table also lists Cheese, processed (unspecified) at 2 mg and Yogurt (not further specified) at 5.2 mg per 100 g.

From the author

Personal experience of someone living with gout

I have it — it's a daily staple for me.

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

Questions

Which purine base makes up most of this number?: Guanine — 0.8 mg of the 1.4 mg per 100 g total. The rest is adenine 0.6, 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.