The debate over whether cow’s milk or plant-based alternatives are healthier has become increasingly common in recent years.
Supermarket shelves are now filled with drinks made from soy, almonds, oats, rice, and other plant sources.
Many people choose these products because of personal preferences, environmental concerns, allergies, or dietary choices. However, a new review from Edith Cowan University in Australia suggests that cow’s milk may still offer important nutritional benefits that are difficult for plant-based alternatives to fully match.
The research was published in the journal Critical Reviews in Food Science and Nutrition. Scientists examined a concept known as the “milk matrix.”
While this term may sound technical, it refers to the natural way nutrients are packaged together inside milk. Rather than viewing milk as simply a source of calcium or protein, researchers wanted to understand how all of its components work together inside the body.
Milk is a remarkably complex food. It contains more than 100 nutrients and bioactive compounds, including protein, calcium, phosphorus, potassium, vitamins, healthy fats, and many other substances. These nutrients are naturally arranged in a structure that affects how the body digests, absorbs, and uses them.
According to Associate Professor Therese O’Sullivan from Edith Cowan University, the benefits of milk may come not only from the nutrients it contains but also from how those nutrients interact with one another.
Researchers believe this natural combination influences everything from nutrient absorption to blood sugar responses, cholesterol levels, and even the health of gut bacteria.
One of the most important findings involved bone health. Strong bones require a steady supply of nutrients, especially during childhood and older age.
Researchers found that regular milk consumption was associated with stronger bones and a lower risk of fractures. Some studies included in the review suggested that people who drank one to two cups of milk each day experienced up to a 43 percent lower risk of fractures compared with those who consumed little or no milk.
The review also examined calcium supplements, which many people take in place of dairy foods. The findings were less encouraging. While supplements can help some people increase calcium intake, studies have produced mixed results regarding bone health benefits.
Some research has even suggested that calcium supplements may be linked to a higher risk of heart disease in certain groups, particularly older women.
Researchers believe the difference may be explained by how nutrients are delivered. In milk, calcium is naturally combined with protein, phosphorus, and other compounds that help the body absorb and use it effectively. Supplements typically provide isolated nutrients without the broader nutritional package found in whole foods.
The study also compared dairy milk with plant-based beverages. Many plant-based drinks are fortified with calcium and vitamins to make them more nutritionally similar to milk.
However, researchers found that these added nutrients may not always be absorbed as efficiently as those found naturally in dairy milk. In addition, some plant-based drinks contain added sugars, vegetable oils, thickeners, or stabilizers to improve flavor and texture.
The findings are particularly relevant for children. Dr. Analise Nicholl, a dietitian at Edith Cowan University, noted that some parents assume plant-based drinks are automatically healthier than milk.
However, removing dairy products from a child’s diet without careful planning can lead to nutritional gaps. Important nutrients such as protein, calcium, iodine, and vitamin B12 are essential for growth and development. Insufficient intake can increase the risk of conditions such as rickets, poor growth, developmental delays, and other health problems.
This does not mean plant-based drinks have no place in a healthy diet. For people with milk allergies, lactose intolerance, or those following vegan diets, fortified alternatives can still provide valuable nutrients.
However, researchers emphasize that consumers should read labels carefully and understand that not all plant-based products offer the same nutritional value.
The study supports what nutrition experts often call a “food first” approach. This means obtaining nutrients from whole foods whenever possible rather than relying heavily on supplements or highly processed products. Whole foods contain complex combinations of nutrients that often work together in ways scientists are still trying to fully understand.
As more people switch from dairy milk to plant-based alternatives, the researchers believe it is important that decisions are based on accurate information rather than marketing claims or assumptions. Nutrition needs vary from person to person, and what works well for one individual may not be ideal for another.
Looking at the evidence overall, the review presents a strong case that cow’s milk remains one of the most effective natural sources of nutrients for bone health and general nutrition. However, it is important to remember that this was a review of existing studies rather than a new clinical trial.
More research will help clarify how different plant-based drinks compare with dairy over the long term. The findings suggest that while plant-based alternatives can be useful for some people, they do not consistently provide the same nutritional package or health outcomes associated with dairy milk.
Consumers should therefore evaluate these products carefully, especially when making choices for growing children.
If you care about nutrition, please read studies about why vitamin K is so important for older people, and this snack food may harm your heart rhythm.
For more health information, please see recent studies about vitamin that may protect you from type 2 diabetes, and results showing this common chemical in food may harm your blood pressure.
Source: Edith Cowan University.
