Could Cockroach “Milk” Really Become a Future Superfood? Scientists Are Taking a Closer Look

An unusual substance produced by a very unusual creature is attracting scientific interest: “cockroach milk.” While the idea may sound shocking, researchers have been studying the milk-like secretion of the Pacific beetle cockroach (Diploptera punctata) for decades.

What Is Cockroach Milk?

Unlike cow’s milk, this substance isn’t produced by mammary glands. The Pacific beetle cockroach is unusual because it gives birth to live young and nourishes its developing embryos with a milk-like secretion.

Scientific research has found that the secretion contains proteins, carbohydrates, lipids, and amino acids. Inside the developing embryos, some of the proteins form crystals that can provide a concentrated source of nutrients. (ScienceDirect)

Why Has It Attracted Attention?

One reason scientists are interested is its nutritional composition. Research has described the milk proteins as highly energy-dense, with some studies reporting caloric values several times higher than mammalian milk. (ScienceDirect)

A 2024 scientific review also examined the potential of this unusual secretion as a future nutritional resource, while emphasizing that there are still major challenges before it could become part of the human food supply. (ScienceDirect)

Is It Really “Better Than Cow’s Milk”?

This is where viral posts can become misleading.

The claim that cockroach milk is simply “four times better than cow’s milk” is not an established nutritional conclusion. The research concerns the composition and energy density of the secretion, not proof that drinking it would be healthier for humans.

In fact, the original research was focused on how the substance nourishes developing cockroach embryos—not on recommending it as a human food. (ScienceDirect)

Could It Become a Food of the Future?

Possibly, but much more research is needed.

Scientists would need to determine how the proteins could be produced at scale, how they could safely be processed, and whether they offer meaningful benefits for human nutrition.

For now, cockroach milk remains a fascinating example of how researchers are exploring unconventional sources of nutrients and looking for new possibilities for the future of food.

So while the viral image may make the claim sound like a nutritional revolution is already here, the reality is much more interesting: the science is still at the research stage.