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Reindeer Milk

Very Rare

Northern Fennoscandia and northern Eurasia

An unusually concentrated milk produced by reindeer, traditionally associated with reindeer-herding cultures of northern Eurasia.

About Reindeer Milk

Reindeer milk is produced by the domestic reindeer (Rangifer tarandus tarandus), semi-domesticated by the Sámi people of northern Scandinavia (Norway, Sweden, Finland) and by indigenous peoples of Siberia and northern Russia for several thousand years. Reindeer herding is central to Sámi culture and identity, and reindeer milk — along with meat and hides — has been one of the primary resources derived from reindeer husbandry in Arctic and subarctic environments.

Reindeer milk is one of the richest and most nutritionally concentrated animal milks in the world, reflecting the extreme energy demands of the Arctic environment and the caloric needs of rapidly growing reindeer calves. Its fat content changes substantially across the lactation period — from around 11–15% at mid-lactation to 15–20% at late lactation, with a documented mean of approximately 15.5% fat and a full-lactation range of roughly 11–21%. Protein content follows a similar pattern, averaging around 9.9% and rising with lactation stage. By comparison, Holstein cow milk typically contains 3.5–4.5% fat — making reindeer milk significantly richer by any measure.

Reindeer cows produce very small quantities of milk — typically 1–1.5 litres per day during a short lactation period — and milking must be done carefully to ensure calves receive adequate nutrition. As a result, reindeer milk has never been commercially produced at scale and remains almost entirely consumed within traditional Sámi and indigenous Siberian contexts. Some Sámi families have historically made small amounts of reindeer butter and cheese for personal consumption.

Sources & Further Reading

PubMed — Gjøstein et al. 2004: Reindeer Milk Composition and Lactation — Primary study reporting mean values of 15.5% fat, 9.9% protein, 2.5% lactose; fat and protein increase markedly with lactation stage (range ~11–21% fat)
ScienceDirect Topics — Reindeer Milk Composition — Summary of published research reporting 11–15% fat at mid-lactation and 15–20% at late lactation, citing Park & Haenlein (2013) Handbook of Milk of Non-Bovine Mammals

Nutrition

Reindeer milk composition varies significantly with lactation stage. Based on the most cited study (Gjøstein et al. 2004), approximate values are:

Fat~15.5% mean; range ~11–21% (rises with lactation stage)

Protein~9.9% mean; rises with lactation stage

Lactose~2.5–3.5% (decreases with lactation stage)

CaloriesVery high per volume; energy increases ~68% across lactation

AvailabilityNot commercially available

Annual yield~1–1.5 litres/day at peak

Reindeer milk is among the richest animal milks in the world. Its low lactose content compared to cow milk reflects the energy strategy of Arctic species, which concentrate energy as fat rather than carbohydrate. The caloric value of the milk averages around 8.7 kJ/g and increases significantly with lactation stage. Reindeer milk is not available commercially and its consumption is limited to traditional cultural contexts.

Common Uses

◌ Drinking fresh◌ Traditional butter◌ Traditional cheese◌ Calf nursing

Reindeer milk is consumed fresh by Sámi herders and in small quantities converted into traditional butter and soft cheeses. Due to the extremely low yields and the priority of ensuring calves receive adequate nutrition, milking for human consumption is limited and selective. Reindeer milk is not available in commercial markets and is considered a traditional subsistence resource rather than a commercial dairy product.

Interesting Facts

Reindeer milk averages around 15.5% fat across the lactation period — roughly 3–4 times the fat content of typical Holstein cow milk — and rises further in late lactation. This extraordinary richness is an adaptation to the Arctic environment, where calves must gain weight very rapidly during the short summer season before winter.
Reindeer are the only deer species in which females (cows) also grow antlers — both males and females have antlers, though males shed theirs earlier in winter.
The Sámi people of northern Norway, Sweden, Finland, and the Kola Peninsula of Russia are the traditional reindeer herders of Europe — reindeer husbandry is legally protected as a Sámi cultural right in Norway and Sweden.
Reindeer milk has a relatively low lactose content compared to cow milk, which may make it more digestible for adults — though it is not commercially available for testing this hypothesis.
Santa Claus's flying reindeer are based on the traditions of the Sámi and other Arctic indigenous peoples among whom reindeer were both practical animals and symbols of cultural identity and spiritual significance.