Donkey milk may sound like a trendy newcomer to the milk market, but in reality, it has been around for thousands of years.

It has become popular again recently, especially in parts of Europe, appealing both to adventurous foodies who want to try new foods and beverages, as well as those who aim to eat natural foods with health benefits.

This article looks into the benefits, uses, and downsides of donkey milk.

Donkeys belong to the Equidae family, which also includes horses and zebras. Various breeds of domesticated donkeys live all over the world, and like many other mammals, female donkeys, known as jennies, have been raised for thousands of years for their milk (1).

Donkey milk has a long history of medicinal and cosmetic uses. Hippocrates reportedly used it as a treatment for arthritis, coughs, and wounds. Cleopatra is said to have maintained her soft, smooth skin with donkey milk baths (2).

It has antimicrobial properties and is used as a folk medicine treatment for infections, including whooping cough, as well as viruses in parts of Africa and India (2).

Compared with milk from other dairy animals like cows, goats, sheep, buffalo, and camels, donkey milk most closely resembles human breast milk. In fact, it was first used in the 19th century to feed orphaned infants (3).

Donkey farming is becoming more popular. However, most farms are small with 530 milking jennies. Each produces only about 4 cups (1 liter) of milk per day. Thus, the milk is somewhat hard to find and considered a specialty item (1, 4, 5).

Raw donkey milk is usually sold at farms where donkeys are raised. In the United States, federal law prohibits the transportation of raw milk across state lines. Some larger farms may sell pasteurized donkey milk (5, 6).

Its more widely available as freeze-dried powdered milk and an ingredient in some European-imported chocolate bars. In Italy, where its especially popular, donkey milk is used in some infant formulas and as a medical food (4, 7).

Although it might seem like a new trend, people have been drinking donkey milk for thousands of years. Its somewhat hard to find unless you live near a donkey farm, but you can purchase powdered donkey milk from some manufacturers.

Nutritionally, donkey milk is very similar to human breast and cows milk. It provides vitamins and minerals along with protein (2, 8).

Its lower in fat, and thus calories, and has more vitamin D than other milks. Most of the calories in donkey milk come from carbs, which are in the form of lactose (2, 8).

This chart lists the nutrition information for 3 ounces (100 mL) of donkey, human breast, and whole, vitamin-D-fortified cows milk (8, 9, 10, 11):

Most of the protein in dairy milk comes from casein and whey. Casein is the protein most people with an allergy to cows milk react to. Donkey milk is similar to human breast milk in that its low in casein and higher in whey (12).

The whey protein in donkey milk is notable for its antimicrobial properties. It contains compounds that can prevent the growth of viruses and bacteria (1, 3, 12).

In lab studies, it prevents the spread of bacteria, including Listeria monocytogenes, Escherichia coli, and Staphylococcus aureus (1, 3, 12).

Donkey milk is low in fat and rich in carbs. The protein in donkey milk is largely whey, which has compounds that can help prevent the growth of some bacteria and viruses.

Fans of donkey milk often drink it for its health benefits, which go beyond its nutritional content. In particular, it has gained a lot of attention as an allergen-friendly and immune-boosting food.

Compared with the protein in cows milk, which has about five times more casein than whey, the protein in donkey milk has roughly equal parts casein and whey (12).

Given its significantly lower casein content, many people with a cows milk protein allergy can tolerate donkey milk, as they find that donkey milk doesnt cause an allergic response (12).

That can be a plus for anyone whos allergic to cows milk but may benefit from the protein and other nutrients that dairy milk provides.

An Italian study in 81 children with an allergy to cows milk found that all were able to drink donkey milk with no negative reaction. Swapping donkey milk allowed for regular weight and height gains (13).

Still, if you have a known allergy, check with your healthcare provider before trying donkey milk. While donkey milk contains less casein than cows milk, even a trace amount of casein can cause anaphylaxis in some people.

Another important component of donkey milk is lactose. It helps your body absorb calcium, which is important for strong bones (12, 14).

Other compounds in the milk may support a healthier immune system. A lab study showed that donkey milk has the ability to promote the release of cytokines, which are proteins that stimulate the immune system (14).

That same study found that donkey milk also causes cells to produce nitric oxide, a compound that helps dilate blood vessels. Nitric oxide can improve blood flow to your blood vessels, which in turn reduces your blood pressure (14).

Donkey milk may be a suitable dairy substitute for people with a cows milk protein allergy, although it still contains casein and lactose. In addition, it might offer other benefits, including supporting a healthier immune system and reducing blood pressure.

The biggest downside of donkey milk is its price and availability. Because both the number and size of donkey dairy farms are limited, its expensive to produce and sell and thus hard to come by.

Europe has some larger manufacturers who sell the milk in powdered form, but it can be expensive to ship overseas.

The price of donkey milk, along with its low casein content, also make it very expensive and difficult to use for cheesemaking.

Another potential downside is that most small farms only sell raw donkey milk, and drinking unpasteurized milk carries a risk of foodborne illness.

Although donkey milk has antimicrobial properties, and tests usually find it to be free of harmful pathogens, theres always a risk that raw milk contains bacteria or other harmful toxins (7).

That can be dangerous if fed to infants, older adults, or anyone with a compromised immune system.

If you want to try donkey milk in liquid or powder form, look for one that has been pasteurized. Alternatively, heat the raw milk to at least 161F (72C) for 15 seconds before drinking it to kill any pathogens (15).

Finally, if you have lactose intolerance and experience symptoms like gas, bloating, and diarrhea after drinking milk, donkey milk will likely cause these same symptoms due to its lactose content.

Thus, people with lactose intolerance should avoid or limit donkey milk. Alternatively, you can use a lactase enzyme to break down the lactose before drinking it.

Donkey milk is in limited supply and can be expensive. You should also be aware that if you drink raw donkey milk, theres a risk of foodborne illness, which is especially a concern for infants or anyone with a compromised immune system.

Donkey milk is more than a food item. Its just as well known for its use as an ingredient in cosmetics. In fact, youll probably have much better luck finding donkey milk skin moisturizers and soaps than donkey milk beverages.

The proteins in donkey milk have the ability to attract and hold water, which makes it an excellent moisturizer (4).

Some of the proteins in donkey milk also function as antioxidants. They help protect cells from oxidative damage, including that caused by sun exposure, thus providing anti-aging benefits (4).

Cosmetic products that may have donkey milk as a major ingredient include skin creams, face masks, soaps, and shampoos.

One of the most common uses for donkey milk is as an ingredient in anti-aging cosmetics. It has moisturizing and antioxidant properties to protect your skin, face, and hair.

Donkey milk may sound like a new fad, but it has been used since ancient Greek and Roman times as a health-promoting beverage and skin-moisturizing cosmetic treatment.

Its especially appealing to those with a cows milk protein allergy who can tolerate its low casein content.

However, note that it still contains a fair amount of lactose and may be unsuitable for people with lactose intolerance.

The milk also contains compounds that may strengthen your immune system and inhibit the growth of bacteria, viruses, and other infections.

Donkey milk is expensive and may be hard to find as a beverage, but you can still take advantage of its cosmetic benefits. Its easy to find moisturizing creams, soaps, and shampoos made with donkey milk.

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