From sheep’s milk to buffalo milk, here are seven types of milk compared for their natural protein content, based broadly on protein per 100 ml. When people think of high-protein milk, cow’s milk is usually the first thing that comes to mind. A glass does provide a decent amount of protein, but it is far from being the only option. Some lesser-known types of milk naturally contain considerably more protein, while popular plant-based alternatives can contain surprisingly little. Exact values can vary depending on the animal, breed, processing and whether a plant milk is homemade or commercially prepared.
It typically contains around 5-6g of protein per 100 ml, putting it well ahead of ordinary cow’s milk. Protein: 5-6g/100 ml Best known for: High protein and rich, creamy texture Buffalo milk is particularly relevant in India, where it has long been part of everyday dairy consumption. Protein: 3.7-4.5g/100 ml Best known for: Richness and naturally higher protein than cow’s milk. Depending on the variety, it generally provides around 3.2–3.5g of protein per 100 ml. That means a 250 ml glass can provide roughly 8g of protein. Protein: 3.2-3.5g/100 ml Best known for: Everyday availability and balanced nutrition Goat milk is nutritionally fairly similar to cow’s milk, including when it comes to protein. It generally provides around 3–3.5g per 100 ml. Protein: 3-3.5g/100 ml Best known for: A dairy alternative with a nutritional profile similar to cow’s milk Protein: 3-3.5g/100 ml Best known for: A distinctive nutritional profile and long history of consumption.
A glass can therefore provide a meaningful amount of protein, although it also brings more calories than many lighter milk options. Because the proteins can cross-react, its reputation as being easier to digest is often overstated, and goat milk is not suitable for people with a cow’s milk protein allergy. If protein is the main criterion, sheep’s milk is the standout. It is also naturally rich in fat and other nutrients, which makes it substantially richer and creamier than the milk most people are accustomed to drinking. Sheep’s milk is more commonly used for making cheeses and yoghurt than consumed as a daily beverage. Its high protein content is partly why it is so useful in cheesemaking: there is simply more milk solid to work with. It generally contains more protein than cow’s milk, along with considerably more fat. That higher fat content gives buffalo milk its characteristic thick, creamy texture and makes it particularly useful for products such as paneer, khoa, yoghurt and ghee. Cow’s milk may not win the protein race, but it remains one of the easiest ways to add dairy protein to an everyday diet. One of its biggest advantages is consistency and accessibility. It works equally well in tea, coffee, cereal, smoothies or simply on its own, making it an easy everyday source of complete dairy protein. But for those who simply prefer its taste or texture, it remains a nutritious dairy option. It is also naturally rich in calcium and other micronutrients.
Its protein content varies by preparation, but it can provide around 3-4g per 100 ml. Protein: 3-4g/100 ml Best known for: One of the most protein-rich plant-based milks. Much of the commercial product is water, with relatively small amounts of almonds, so protein levels can be as low as around 0.5-1g per 100 ml. Protein: 0.5-1g/100 ml Best known for: A lighter, nut-based alternative rather than a protein source
Because its protein contains all nine essential amino acids, making it a particularly useful plant-based protein source, soy is also notable. Among plant-based milks, soy milk is one of the strongest protein contenders. That puts it surprisingly close to dairy milk and well ahead of many popular nut-based alternatives. For anyone avoiding dairy but still looking for a milk that contributes meaningful protein, soy is usually a better bet than almond or rice milk. Almond milk may have a healthy reputation, but it is not a particularly impressive source of protein. That does not make it a bad choice. It simply means it should not be relied upon as a major protein source. If protein is your priority, soy milk is generally a much stronger plant-based option.