Study says cockroach milk could be next superfood, Musk reacts

A scientific review published in the journal Insects examined how cockroach milk and other insect-derived ingredients could be used in functional beverages. Reacting to the findings, the world's richest man, Elon Musk, wrote, "Gross." Produced by the Pacific beetle cockroach to nourish unborn offspring, the milk contains protein crystals and reportedly has three times the calories of cow's milk.