Dairy Detective
Researching the non-bovine dairy sector
The nutritional, functional and market prospects of goat milk and sheep milk.
Pranav Vashisht serves as a Continuous Improvement Specialist II for the Milk Value Platform of Idaho Milk Products, where he leads process development and improvement projects. He is an active volunteer with the IFT, contributing to both Dairy Foods Division and the Intermountain Section. Pranav holds an M.S. in Food Science and a B.S. in Dairy Technology and has a strong background in dairy products’ development and manufacturing.
While much of the dairy industry continues to debate the future of cow’s milk versus plant‑based alternatives, a third category is steadily gaining momentum: non‑bovine milks. Sourced from goats, sheep, camels, donkeys and buffalo, these milks bring distinct nutritional and functional characteristics that are increasingly relevant to specialized nutrition, traditional dairy, and new product development.
Growth in this segment is being driven by digestibility, hypoallergenic potential, higher micronutrient density, and naturally occurring bioactive compounds, prompting developers to rethink approaches to dairy diversification. A common advantage across many non‑bovine species is their alignment with digestive comfort and, in some cases, a different allergen profile than cow’s milk. These underlying compositional differences, spanning protein and fat structures, micronutrient density, and bioactive compounds, often translate into application-specific functionality.
For example, goat milk, with smaller fat globules, differences in casein composition, and higher medium-chain triglycerides, supports gentler digestion and performs well in yogurts, cultured beverages, and powders due to its ability to form smooth, uniform gels. However, these characteristics should not be positioned as suitable for cow milk protein allergy (CMPA), as cross-reactivity across mammalian milks can occur and the evidence base is still evolving.
On the other hand, sheep milk, rich in protein, fat and micronutrients, enables nutrient-dense formulations and is particularly suited for cheese manufacturing given its high solids and curd strength. Camel milk, notable for the absence of β-lactoglobulin and its bioactive profile (e.g., lactoferrin and immunoglobulins), is gaining traction in functional nutrition and performs best in fermented drinks, nutritional beverages and frozen desserts despite challenges in traditional rennet-based systems.
Donkey milk, low in fat and compositionally closer to human milk, is used in specialized nutrition applications and mild fermented products. Buffalo milk, with high fat and protein content, supports rich, dense matrices in mozzarella-type cheeses, dairy desserts, and indulgent beverages. Together, these attributes extend product possibilities beyond conventional cow‑milk systems.
Commercial momentum reflects these functional advantages. Goat milk is forecast to exceed $16 billion by 2032, driven by digestibility and premium positioning, while sheep milk is expected to surpass $10 billion by 2032, supported by specialty cheeses and fortified nutrition. Camel milk — the fastest‑growing segment — is projected to reach $24 billion by 2030, reflecting expanding interest in functional and specialized nutrition.
While donkey milk remains limited by supply, it is trending toward $45 million by 2028 in specialized nutrition and wellness niches. Buffalo milk, widely consumed across Asia, is projected to exceed $25 billion by 2035, sustained by both traditional consumption and premium product growth. Collectively, these trends point to functionality‑driven expansion rather than a niche market dynamic.
Scaling non‑bovine dairy systems requires precision. Lower per‑animal yields for camel and donkey, variability in raw milk composition, species‑specific culture and rennet requirements, narrow thermal margins, and inconsistent standards increase complexity and cost. Near‑term progress will depend on targeted culture and enzyme selection, protein and mineral control through processing, effective preservation strategies, standardized ingredient streams, and supply‑chain efficiencies.
Non‑bovine milks ultimately expand dairy’s functional and nutritional range. Their distinct protein structures, fat systems, mineral balance and bioactive profiles allow developers to design products for specific performance goals rather than adapt cow‑milk templates. As demand continues to shift toward digestive comfort, inherent functionality, and defined sensory outcomes, non‑bovine milks are positioned to play a meaningful role in the next phase of dairy innovation.
References
- Balthazar, C. F., Pimentel, T. C., Ferrão, L. L., Almada, C. N., Santillo, A., Albenzio, M., ... & Cruz, A. G. (2017). Sheep milk: Physicochemical characteristics and relevance for functional food development. Comprehensive reviews in food science and food safety, 16(2), 247-262.
- Chauhan, M. S., & Selokar, N. (Eds.). (2022). Biotechnological applications in buffalo research. Springer.
- Khaliq, A., Mishra, A. K., Niroula, A., Baba, W. N., Shaukat, M. N., & Rabbani, A. (2024). An updated comprehensive review of camel milk: Composition, therapeutic properties, and industrial applications. Food Bioscience, 62, 105531.
- Nayik, G. A., Jagdale, Y. D., Gaikwad, S. A., Devkatte, A. N., Dar, A. H., Dezmirean, D. S., ... & Alotaibi, S. S. (2021). Recent insights into processing approaches and potential health benefits of goat milk and its products: A review. Frontiers in nutrition, 8, 789117.
- Singh, M. P., Vashisht, P., Singh, L., Awasti, N., Sharma, S., Mohan, C., ... & Charles, A. P. R. (2024). Donkey milk as a non-bovine alternative: A review of its nutri-functional properties, applications, and challenges. Journal of Food Science and Technology, 61(9), 1652-1661.
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