Eggs supply high-quality protein and several essential nutrients. Their composition, digestibility, and food safety requirements have been extensively studied.
Soybeans and other legumes provide plant-based protein alongside fiber and other nutrients. They are widely used in foods and have established processing methods.
Insect-derived foods, such as certain edible insect species, are also being studied and consumed in some regions. Their safety and nutritional value depend on the species, production conditions, processing methods, and individual product. Evidence for one edible insect cannot simply be transferred to another.
Cockroach milk crystals occupy a different position: they are a subject of specialized research, and their nutritional characteristics are not yet supported by the same body of human food-use evidence as conventional protein sources.
The comparison illustrates an important point. A promising molecular discovery does not necessarily mean that the resulting material is a better choice than foods already available.
The best protein source for a person depends on dietary needs, allergies, preferences, affordability, accessibility, and the overall composition of the diet.
12. What Would Need to Happen Before It Could Reach Supermarket Shelves?
Several major steps would have to be completed before cockroach milk could become a practical commercial food.
Stage 1: Better understanding of its composition
Researchers would need to characterize the proteins, fats, carbohydrates, and other components in detail.
They would also need to understand how natural variation affects the composition of the material.
Stage 2: Development of a reliable production method
The ingredient would need to be produced in quantities sufficient for testing and, potentially, commercial use.
This could involve improving insect-based collection methods or developing a biotechnology-based manufacturing process.
Stage 3: Consistency and quality control
Food production requires reliable specifications. Manufacturers would need methods to ensure that each batch meets defined standards for composition, purity, and safety.
Stage 4: Safety and nutritional testing
Researchers would need appropriate evidence on digestibility, potential allergens, toxicity, and the ingredient's nutritional value.
The type and extent of testing would depend on the intended use and the regulatory requirements of the market.
Stage 5: Food formulation
Even a safe, nutrient-rich ingredient must work in a real food product.
Researchers would need to assess taste, texture, stability, processing behavior, shelf life, and interactions with other ingredients.
A concentrated protein ingredient might be developed for a specialized application rather than sold as a drink resembling ordinary milk.
Stage 6: Regulatory assessment
Food regulations differ between countries. A novel ingredient would need to meet the applicable requirements before being marketed for human consumption.
Regulators may require evidence about the manufacturing process, intended use, safety, labeling, and potential risks.
Stage 7: Consumer acceptance
Finally, manufacturers would need to determine whether consumers are willing to buy and use the product.
The word “cockroach” may create an immediate psychological barrier for many people, even if a future ingredient were produced through biotechnology without collecting material from the insects themselves.
Clear labeling, transparent scientific evidence, and consumer trust would all be important.
These steps could take considerable time. There is no reliable basis for predicting that cockroach milk will become a mainstream food within a particular number of years.
13. Does This Mean We Will Soon Be Drinking Cockroach Milk?
Not necessarily.
The research demonstrates that a particular cockroach species produces a nutrient-rich secretion and that its milk-derived proteins can form unusual crystals inside developing embryos.
It does not mean that bottles of cockroach milk are about to replace cow's milk, soy milk, or other beverages.
The practical barriers are substantial. Natural collection is difficult, commercial production methods would need development, and human safety and nutritional benefits remain insufficiently established.
A future product, if one is developed, might not resemble the natural secretion at all. It could instead be a purified protein ingredient manufactured through biotechnology and incorporated into a formulated food.
Even then, the ingredient would need to offer a meaningful advantage in nutrition, cost, production, or another measurable area to compete with established alternatives.
It is equally possible that the most valuable contribution of this research will be scientific rather than culinary. Understanding how the crystals organize and store nutrients may help researchers investigate protein behavior or inspire new approaches to biotechnology.
A discovery does not have to become a supermarket product to be scientifically important.
Conclusion: A Fascinating Discovery, Not Yet a Proven Superfood
Cockroach milk is one of the more unusual subjects in modern nutritional research. The Pacific beetle cockroach produces a nutrient-rich secretion for its developing offspring, and some of that material forms crystals containing proteins, carbohydrates, and fats.
A landmark 2016 study revealed important details about the crystals' molecular structure and reported an unusually high energy content relative to dairy milk by mass. These findings help explain why scientists have considered possible future nutritional applications.
But several questions remain unanswered. Researchers must determine whether a suitable ingredient can be produced economically, whether it is safe and digestible for humans, and whether it offers meaningful nutritional benefits in real-world use.
Its potential sustainability advantages also require evidence rather than assumptions.
For now, cockroach milk is best understood as a fascinating scientific discovery with possible applications worth investigating—not as a proven superfood, a recommended supplement, or an established alternative to conventional milk.
The broader lesson is that nature can reveal unexpected ways to store and deliver nutrients. Whether this particular discovery eventually changes human diets or remains primarily a contribution to molecular science, it demonstrates how much there is still to learn about the biology of food.
Scientific disclaimer: This article is for educational purposes only. Cockroach milk crystals have not been established as a safe, approved, or beneficial human food simply by virtue of their reported composition. Do not attempt to collect or consume them as a home-made supplement.
Scientific sources
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Banerjee S. et al. (2016). “Structure of a heterogeneous, glycosylated, lipid-bound, in vivo-grown protein crystal at atomic resolution from the viviparous cockroach Diploptera punctata.” IUCrJ. Read the original research.
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PLOS/ExCLI Journal review (2018). “Highlight report: Diploptera punctata (cockroach) milk as next superfood.” Read the review.
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Pushparaj K. et al. (2024). “Potential of insect-based milk moiety from Pacific beetle cockroach, Diploptera punctata (Blattodea): Insights as superfood.” Journal of Asia-Pacific Entomology. Read the review abstract.
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ABC Science (2018). “Is cockroach 'milk' really a superfood?” Read the science explainer.