Recognition of cockroach milk protein research

Research into the nutritional properties of milk produced by the Pacific beetle cockroach (Diploptera punctata) has received significant scientific recognition.

Initially, researchers studying the protein crystals that nourish developing embryos in this species were awarded the 2026 Ig Nobel Prize in Chemistry. The study, which utilized X-ray crystallography, found that these crystals provide a highly concentrated nutritional source, with one crystal estimated to contain more than three times the energy of an equivalent mass of dairy milk.

Following this, an international team of researchers was awarded the Nobel Prize in Chemistry for their discovery regarding the protein content in the cockroach milk. The research highlights that the milk consists of microscopic crystals containing a balance of fats, sugars, and proteins, including all nine essential amino acids. While the milk is noted to be significantly more energy-dense than human breast milk and approximately three times more nutritious by weight than cow’s milk, researchers stated that commercial production remains impractical due to the number of insects required for harvesting.